Thanks for the quick reply, Let me elaborate on my issue, this is during the customization process even when I have developer mode on and re open the same customization any change i have made does not appear Here is a step by step on the issue I am getting.
1. Open Part maintenance In developer mode
2. Open WhereUsed In developer mode (Base only)
3. Add textbox to the screen
4. Save as new customization
5. Close WhereUsed screen
6.Open WhereUsed screen in developer mode
7.Select the Customization I just made
8. Textbox that I added in (Step3) does not appear