Doable already ?

I don't understood how to make the roll-out and roll-close (open and close a fence) by clicks (single click preferred).

I understand how to make it stay open. And closed. By double-clicks.

I understand also how to make them open automatically by hoovering over them with mouse to open and close them. However :

I have arranged closed (not open) fences, such that these closed fences now look like bars (with name of it)  list-wise. These bars are listed like lines of a text block; a paragraph. That means that when the mouse goes over the top bar it will open that fence as to also now cover the view to the following bares of the closed fences underneath the open one. So now I cannot hoover over to the next one underneath, obviously, unless I go with the mouse to the left or to the right out of the way (unfortunately over the adjacent rows of bars). Only then the open fence will close automatically and reveal again the closed ones underneath. I want to be able to stay with the mouse on the bar and click and close that one without all fences around wildly fly open all over the place - just because the mouse hoovers above them.  But I do want the fences to be closed in order to use the  space underneath (save) them for placing other closed fences. Single clicks to open and close would obliviously be better than double-clicks.

..Doable now and I did not see how to  ?

Thanks !