I downloaded kdenlive from my Software Manager for Linux Mint KDE. The user manual is missing from the Help tab as well I can't for the life of me find online resources which apparently is in tools . add clip, but is not.

Which Kdenlive version is this?
The manual can be found online: http://userbase.kde.org/Kdenlive/Manual

http://userbase.kde.org/Kdenlive/Manual/Project_Menu/Online_Resources "Available from the Project Menu and the Add Clip drop down,"