Open the monitoring for a sub-tree from the context menu on the treeview

[TomNysWF]

Is your feature request related to a problem? Please describe.
when browsing trough the tree, i use ctrl+click to go to sub-tree's. however to be able to actually look at the variables of that tree i have to go find it in the left sidebar trough all the nodes, this is not handy with bigger trees with lots of subtrees.

Describe the solution you'd like
Add a context menu option in the treeview when monitoring to open the variables of that subtree (basivly select the variable chcekbox in the left sidebar automaticly)

Describe alternatives you've considered
a context menu on the tab in the top of the screen would also be good, any way to just go to the monitor for the variables of the current open tree would be great.

[facontidavide]

that is a nice improvemnt,I will do it