How to make some fields in ALV tree editable

Hello All,
Can any one tell me how to make some fields in ALV tree editable.
If possible please post some code.
Regards,
Lisa.

Hi Lisa,
I want to make 3 fields in the ALV tree editable and update the saved values in ztable.
I tried making the wa_fieldcat-edit = 'X' But in vain.
Also i made the layout fields wa_layout-edit = 'X' and wa_layout-edit_mode = 'X'.
But still the alv tree field appears as display.
As you have mentioned in the post as answered, So please guide me to make the field editable.
I am using oops method.
Please provide me code if any.
Thanks & Regards,
Mozila

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