Slidder gone in toolbar (Nudel?)

Hi there, I know this has been covered but I just can't find what setting I need to change to have the slider visible in the Nudel image tool bar (this has all the convert image buttons as well as a "desktop background" icon.

I know it's simple, but it's driving me mad as to how to reinstate it...

help!!

thanks.

scrap that....after all this time of searching have found the tick box....

many names spring to mind for my inadequacies but please keep them to yourselves.

ta.

"Human" was my first thought. :stuck_out_tongue: