Sanity check on UMG widget values


I would like a sanity check done on values input into the details pane of UMG widgets.
For example: I just had to terminate the editor instance as I accidentally set a widget to span 70K+ rows by clicking and sliding the slider of the grid panel.
(I had to kill the editor process as it was chowing up RAM and causing Windows to page out like crazy)

Perhaps something like a confirmation box could be shown.
The sanity values could even be set the editor settings.