Why can't I edit the Master Database

Can someone from NI please explain the reasoning behind not letting the user edit the master database?  I want to do something simple like remove one of the redundant + and "dot" polarity indicators on some of the capacitor footprints without having to, one by one, change each capacitor to use my custom footprint.
I have found several errors in the master database yet I can't fix those parts or footprints or remove them, thus increasing the likely hood that they will get used by mistake/unknowingly again.
The only explanation that I can come up with is poor database design and fear of me "breaking" it.   Something as simple as editing a part through the GUI should be simple enough to do to, please let me.  No offense, but your master database is not good enough to warrant "no edits".  Most parts I use are from the local database, but that is not an option for special case parts like resistors and capacitors.
Also, why I can't edit the database itself without using the GUI? (as is an option in all other CAD packages that I've used).  The GUI entry point is extremely time consuming and error prone when a database script can often easily create error/typo free part numbers using existing symbols and footprints.
Greg

There are several ways you can achieve the results you looking for with respect to RLCs.
Ultiboard first searchs the User then Corporate the Master database when looking for footprints. So, if you want to make a modification to a footprint, make the copy the appropriate in Ultiboard into your User database. Then modify the footprint. When you transfer from Multisim to Ultiboard, Ultiboard will pick the footprint you customized (or fixed).
One thing to watch out for is determining the correct name in Ultiboard. The name in Multisim is often not the name in Ultiboard. I don't know of any simple way of determing the mapping.
Place the component with the footprint that you want to change (in Multisim)
Double click the component, and click Edit Footprint on the Value page
Click Select from Database. The footprint should be selected. The name in Ultiboard is the Ultiboard Footprint column (if it is blank, then the name in Multisim and Ultiboard is the same).
You can add new footprints to the list in the Place Component dialog. You do this in the Database Manager.
Go to Tools > Database > Database Manager
Select the RLC Components tab
Click the Add button to add a new definition. Note, the definition will appear for all components of the same type. Also watch out for the polarity of capacitors and other components where relevant.
Garret
Senior Software Developer
National Instruments
Circuit Design Community and Blog
If someone helped you, let them know. Mark as solved or give a kudo.

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