How do I modify an arbitrary component value during a simulation?

I am a new Multisim user, beginner SPICE user, but with some undergrad and graduate EE coursework, and some "real world" experience, but I don't pretend to be an EE by long shot.
I am moving to Multisim from a competitor. In the competition, I can open a tab with all the components in the schematic and their values, including various SPICE model parameters and can modify these while the simulation is running.
For example, I can change a resistor without adding a potentiometer. This affords much quicker simulation response and keeps the schematic very clean and clear.
Can Multisim do this? I have not been able to find any information regarding this interactive control of component values and SPICE parameters while a simulation is running.
David
David M. Ingebretsen, M.S., M.E.
Collision Forensics & Engineering, Inc.
[email protected]
www.CFandE.com

Yes. The software is B2 SPICE by BeigeBag software:
http://www.beigebag.com/
Attached is a grab of the "properties" tab for modifying parameters during the simulation. It is very easy and useful. Since teeh components are "static" it doesn't add to the overall simulation overhead. I'm not sure how the author actually programmed this feature, but it is useful as you can add standard fixed components and simply change the value of any component in the circuit during the simulation.
David M. Ingebretsen, M.S., M.E.
Collision Forensics & Engineering, Inc.
[email protected]
www.CFandE.com

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--> p1        text
<-- p2        text
form select_data.
data: lt_sflight type table of sflight with header line,
        ls_scarr type scarr.
select data of sflight
select * from sflight into table lt_sflight up to g_max rows.
copy data to gt_sflight and update CARRNAME
loop at lt_sflight.
    move-corresponding lt_sflight to gt_sflight.
    select single * from scarr into ls_scarr
       where carrid = gt_sflight-carrid.
    gt_sflight-carrname = ls_scarr-carrname.
    append gt_sflight.
endloop.
endform.                               " select_data
*&      Form BUILD_FIELDCATALOGS
      text
     <--P_GT_FIELDCAT text
     <--P_GT_FCATFCAT text
form build_fieldcatalogs changing p_fieldcat type lvc_t_fcat
                                  p_fcatfcat type lvc_t_fcat.
data: ls_fcat     type lvc_s_fcat.
Fieldcatalog for table SFLIGHT: p_fieldcat
generate fieldcatalog automatically
call function 'LVC_FIELDCATALOG_MERGE'
      exporting
           i_structure_name       = 'SFLIGHT'
        I_CLIENT_NEVER_DISPLAY = 'X'
       changing
            ct_fieldcat            = p_fieldcat[]
   EXCEPTIONS
        INCONSISTENT_INTERFACE = 1
        PROGRAM_ERROR          = 2
        OTHERS                 = 3
if sy-subrc <> 0.
MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
        WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
endif.
shift all column positions to the right except for MANDT
loop at p_fieldcat into ls_fcat.
    if ls_fcat-fieldname ne 'MANDT'.
      add 1 to ls_fcat-col_pos.
      if ls_fcat-fieldname = 'CARRID'.
        ls_fcat-txt_field = 'CARRNAME'."link CARRNAME to CARRID
      endif.
      modify p_fieldcat from ls_fcat.
    endif.
endloop.
create a new line for CARRNAME in p_fieldcat
clear ls_fcat.
ls_fcat-fieldname = 'CARRNAME'.
ls_fcat-ref_table = 'SCARR'.
ls_fcat-col_pos = 1.
insert new line before CARRID (do not forget MANDT!).
insert ls_fcat into p_fieldcat index 1.
Fieldcatalog for table LVC_T_FCAT:p_fcatfcat
Generate fieldcatalog of fieldcatalog structure.
This fieldcatalog is used to display fieldcatalog 'p_fieldcat'
on the top of the screen.
call function 'LVC_FIELDCATALOG_MERGE'
      exporting
           i_structure_name       = 'LVC_S_FCAT'
        I_CLIENT_NEVER_DISPLAY = 'X'
       changing
            ct_fieldcat            = p_fcatfcat[]
   EXCEPTIONS
        INCONSISTENT_INTERFACE = 1
        PROGRAM_ERROR          = 2
        OTHERS                 = 3
if sy-subrc <> 0.
MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
        WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
endif.
Hide all fields that are not documented (valid for release 4.6A)
perform hide_fields changing p_fcatfcat.
endform.                               " BUILD_FIELDCATALOGS
*&      Module EXIT_PROGRAM INPUT
      text
module exit_program input.
leave program.
endmodule.                             " EXIT_PROGRAM INPUT
*&      Form MODIFY_FIELDCATALOG
      text
     <--P_GT_FCATFCAT text
form modify_fieldcatalog changing p_fcatfcat type lvc_t_fcat.
data ls_fcat type lvc_s_fcat.
loop at p_fcatfcat into ls_fcat.
    ls_fcat-coltext = ls_fcat-fieldname.
    ls_fcat-edit = 'X'.
    if ls_fcat-fieldname = 'COL_POS' or ls_fcat-fieldname = 'FIELDNAME'.
      ls_fcat-key = 'X'.
    endif.
    modify p_fcatfcat from ls_fcat.
endloop.
endform.                               " MODIFY_FIELDCATALOG
form hide_fields changing p_fieldcat type lvc_t_fcat.
data: ls_fcat type lvc_s_fcat.
Only show documented fields of fieldcatalog.
For a documentation choose "Help->Application Help" in the menu.
loop at p_fieldcat into ls_fcat.
    if not (
         ls_fcat-fieldname eq 'CFIELDNAME'
    or   ls_fcat-fieldname eq 'COL_POS'
    or   ls_fcat-fieldname eq 'COLDDICTXT'
    or   ls_fcat-fieldname eq 'COLTEXT'
    or   ls_fcat-fieldname eq 'CURRENCY'
    or   ls_fcat-fieldname eq 'DD_OUTLEN'
    or   ls_fcat-fieldname eq 'DECIMALS_O'
    or   ls_fcat-fieldname eq 'DECMLFIELD'
    or   ls_fcat-fieldname eq 'DO_SUM'
    or   ls_fcat-fieldname eq 'DRAGDROPID'
    or   ls_fcat-fieldname eq 'EDIT_MASK'
    or   ls_fcat-fieldname eq 'EMPHASIZE'
    or   ls_fcat-fieldname eq 'EXPONENT'
    or   ls_fcat-fieldname eq 'FIELDNAME'
    or   ls_fcat-fieldname eq 'HOTSPOT'
    or   ls_fcat-fieldname eq 'ICON'
    or   ls_fcat-fieldname eq 'INTLEN'
    or   ls_fcat-fieldname eq 'INTTYPE'
    or   ls_fcat-fieldname eq 'JUST'
    or   ls_fcat-fieldname eq 'KEY'
    or   ls_fcat-fieldname eq 'LOWERCASE'
    or   ls_fcat-fieldname eq 'LZERO'
    or   ls_fcat-fieldname eq 'NO_OUT'
    or   ls_fcat-fieldname eq 'NO_SIGN'
    or   ls_fcat-fieldname eq 'NO_SUM'
    or   ls_fcat-fieldname eq 'NO_ZERO'
    or   ls_fcat-fieldname eq 'OUTPUTLEN'
    or   ls_fcat-fieldname eq 'QFIELDNAME'
    or   ls_fcat-fieldname eq 'QUANTITY'
    or   ls_fcat-fieldname eq 'REF_FIELD'
    or   ls_fcat-fieldname eq 'REF_TABLE'
    or   ls_fcat-fieldname eq 'REPREP'
    or   ls_fcat-fieldname eq 'REPTEXT'
    or   ls_fcat-fieldname eq 'ROLLNAME'
    or   ls_fcat-fieldname eq 'ROUND'
    or   ls_fcat-fieldname eq 'ROUNDFIELD'
    or   ls_fcat-fieldname eq 'SCRTEXT_L'
    or   ls_fcat-fieldname eq 'SCRTEXT_M'
    or   ls_fcat-fieldname eq 'SCRTEXT_S'
    or   ls_fcat-fieldname eq 'SELDDICTXT'
    or   ls_fcat-fieldname eq 'SELTEXT'
    or   ls_fcat-fieldname eq 'SP_GROUP'
    or   ls_fcat-fieldname eq 'SYMBOL'
    or   ls_fcat-fieldname eq 'TECH'
    or   ls_fcat-fieldname eq 'TIPDDICTXT'
    or   ls_fcat-fieldname eq 'TOOLTIP'
    or   ls_fcat-fieldname eq 'TXT_FIELD' ).
      ls_fcat-tech = 'X'.
    endif.
    modify p_fieldcat from ls_fcat.
endloop.
endform.
form switch_visibility.
data: lt_fcatfcat type lvc_t_fcat,
        ls_fcat type lvc_s_fcat.
call method g_editable_alv->get_frontend_fieldcatalog
             importing ET_FIELDCATALOG = lt_fcatfcat.
if not g_all is initial.
     perform hide_fields changing lt_fcatfcat.
     g_all = SPACE.
else.
    loop at lt_fcatfcat into ls_fcat.
       if ls_fcat-tech eq 'X'.
           ls_fcat-tech = SPACE.
           ls_fcat-no_out = 'X'.
           modify lt_fcatfcat from ls_fcat.
       endif.
    endloop.
    g_all = 'X'.
endif.
call method g_editable_alv->set_frontend_fieldcatalog
            exporting it_fieldcatalog = lt_fcatfcat.
call method g_editable_alv->refresh_table_display.
endform.
Don't forget to rewaard if useful..

How to Position Thumb on Slider Component

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I am relearning ActionScript after 6 years away, so please
excuse what may be a really stupid question. I am trying to use the
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used the Code example from the Flash online documentation and got
it to work. Trouble is, the thumb on the slider is starting at 10
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I tried setting the aSlider.value = 50; And that works,
except as soon as I finish dragging the slider, the thumb snaps
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How can I make the new event.value persist outside of the
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