is there a way to play a single fullshow (all clips) with one or two clicks?

In Version 2.0 the Special right click option to play the Full Shows does not yet Exist.

The current way to do it it is the Change the Show Duration Setting in Advance Settings.
set the Slider to Full Show

now in your Collection Any Card you click the Play button will play the full show.
or you can add cards to the Queue and all cards on the Queue will then Play full Shows.

when you are done Playing full Shows.
set the Show duration back to your Normal Show Duration Setting.

At a minimum it takes 5 clicks now.
Click your Profile Icon
Click Settings
Click and adjust the Duration Slider
Click Collection
Click on the play button of a card

and 5 Clicks to reset it...

If a Model is Playing you can do it in 3 Clicks
Right Click Model to bring up the Round Contextual Menu
Click the Gear Icon to go to settings
adjust the Show duration slider

Ok it's 4 clicks because you have to close the UI...