Update.
Unless any major bugs are found, here is a zip of the version that will be in the official release of 2.82. 
Bugs fixed/polish added since the last zip:
Fixed the popup window’s auto-sizing when it’s first opened.
Fixed an error when popping up info notices.
Simplified the remove operator.
Fixed a minor error regarding selection.
Thanks to everyone who provided feedback/reported bugs. Now it’s on to 2.83. 
Collection_Manager_14_v1_8_8.zip (12.5 KB)