Unable to set a user defined values in image field

[iNDdM]

I have a user defined field of image type on AR Order window at line level. I need to setup a user defined value off a formatted search on this field however I cannot place the cursor in the field to activate Tools-customization tools - User defined values setup window ( or shift+alt+F2)

The cursor always changes to a hand icon on the field and you can only double click on it.

[Abdul]

You can't write values to image fields as there fileds are used to save the image file name selected by the user. An alternate would be to try post-transaction notification but thats not an ideal solution as it may void the SAP support contract.