Hello Sri Lakshmi,
These are achieved through SPRO settings. For Description changes you need not have gone to table changes. This can be done through spro tcode OPS1. See this picture. (These arrows indicate the Description of various user-fields of your Field key)
Image may be NSFW.
Clik here to view.
And for your present requirement of making a user-field (USR00) inactive, the spro tcode is OPUK.
- Run the tocde
- Click on Image may be NSFW.
Clik here to view.button at the top.
- D'click on line Image may be NSFW.
Clik here to view..
- In the resulting screen Enter your Field key value in the Contents field and Hit Enter button.
- Now you set the PRPS-USR00 field to Disp. as shown below.
Image may be NSFW.
Clik here to view.
Save changes and transport the work. This makes the job done.
Please give feedback.
KJogeswaraRao