Natron - roto node

Hi all.
i starting with natron directly into production.
so i drew a roto mask and animated it. all good, i have an alpha and all.
but when i leave the node to move further into my node tree, the red line and the roto tool still stays into the viewer.
what’s the catch ?

i cant find where to un-display it.

join to viewer

2018-05-28-192547_231x132_scrot

heres the thing : it stays displayed forever, even thou im finished with my roto.

even if i connect the viwer to the reader, it stays displayed.

I use roto and without Bg.

just to be clear :
im talking about the shape that i animated and used as a mask. im done with it, and i want to move further in my comp.
but it stills show up no matter how many nodes i put afterwards. it seems the roto tool remains in edit mode forever
i need it away so i can continue my comp.

i dont know, is there a finalize button somewhere that i missed ?
is it a bug ?

ok so, to answer my own question, we can not in natron hide old shapes or trackers UI elements from the viewer.

we can only display ALL overlays or hide ALL overlays.
for future features, that may be a good thing to have, a UI toggle in each node.

now new problem, old versions of natron had a link from roto shapes to trackers. (as seen in videos and tuts)
is that gone forever or is there a trick ?