On click on the menu of the 1st combobo it is very slow to appear (around 30 seconds)
But the menu of the 2nd combobox, hacked to avoid calling area_apply_attribute_cb), is reasonably fast (around 3 seconds) to appear.
Current behavior
menu very slow to appear
Expected outcome
A better way to map from the row in the model to the Menuitem ? The repeated get_tree_menu_get_path_item loop over results of gtk_container_get_children is crippling.