I have been going through a few drawings that inadvertently had a revision letter applied. This is stored as a property. When I open the property window, I highlight the field, and press delete. After going through this a few times, I suddenly realized that my efforts were being undone by SW.

It seems you can't delete the text field of a property, you can only add new content. So, I ended up using "-".

But, I am frustrated that SW will undo my work! If there is some programming limit that requires something to be in that field - then put up a warning window. Don't just leave the user unaware that what they type is going to be undone!

Joe Dunfee