"Ability to add whole libraries in one click" is missing

[MoRBiD-MaNGLeR]

This issue exists in 0.0.61 (Winx64) which introduced "Ability to add whole libraries in one click.":

MoRBiD MaNGLeRToday at 6:06 AM
@vexorian For the "Ability to add whole libraries in one click" Improvement, where does this ability appear? I don't see it:

vexorianToday at 6:07 AM
Hmnn there should be a plus button

MoRBiD MaNGLeRToday at 6:08 AM
I only see + for individual movies.

[MoRBiD-MaNGLeR]

Clearing Chrome's browser data and retrying fixed the issue:
chrome://settings/clearBrowserData