@shaun
I had tried changing the width in the dictionary, but didn’t work. I didn’t think about re-assigning the dictionary. It works now, thanks.
@p.colbert
I will try with the first empty column, changing its width by re-assigning the dictionary as Shaun suggests.
I will add a link to the second column. The link will have the open/close icons.
The tree structure will be:
- column 1 empty with variable width to set the indentation
- column 2 with the link with the widget, the only one without set width
- column 3+ all with fixed width