The update button was disabled because the window automatically updates when objects are selected or changes are made.
The rename function works if you follow the usage instruction in its annotation. Simply input the oldname and newname separated by a comma(old_name,new_name). No spaces. Spaces tell the editor to treat the names as unique attributes.
Comments on this bug:
3dmpro said about 10 years ago:
Kido Carl said about 10 years ago:
3dmpro said about 10 years ago: