That is true, I do have that in the article as well (it's at the end of the article), however at the time I was doing this for a system where they wanted the "edit" action more obvious to users. However, for consistency with the rest of Creatio, I'd go the route of using the icon as well.
Is there a custom HTML control in Creatio that I can use to build a tree hierarchy and visualize it in the UI? The input parameter to the control will be a single node that could be at any position in the tree. The logic should query the database for the links to traverse upwards and downwards from the said node to complete the tree.
Is there already a control in Creatio that can be repurposed for this use-case?