question

Those buttons only show in the standard environment. They were removed from the Healthcare environment because they are rarely used in an HC model and you can just hold down the "A" or "S" keys to make connections between objects if you really need to. So you could leave the Healthcare environment to use those buttons and then get back into the Healthcare environment after making object connections.

If you really want to add those buttons to your user toolbar you can copy those nodes in the tree, by copying this node:

Into the environment/usertoolbar node:

Or, alternatively you could open a script window and run this line of code:

createcopy(node("VIEW:/active/MainPanel/ToolPanel/ModePanel/Toolbar>items/Connect Objects"), node("VIEW:/environment/usertoolbar"))