[Parking spaces accessible symbol]

I'd like to replace the standard International Symbol of Access (wheelchair symbol) in the Parking Spaces tool with the more active, modified symbol. I haven't found a way to modify the symbol within the tool--does anyone know if there's a way to do that?

 

Thanks.

[undo not working in some cases.]

I have another instance of undo not working, which I noticed sometime after updating to VW2017 SP3:

 

Undo is not working with Callout tool--moving callouts, editing callouts, etc.--undo doesn't seem to work at all, and then prevents undos of earlier actions. Anyone else having this issue?