Multiple Arrows!

I found this thread because the IS what I want to do. If I have a label that points to one of several identical elements (like windows of a certain size, or plants on a planting plan) I'd like to use the label tool to then click on the next element and bring the line up to the existing text box. If I try that, the new arrow wants to make its own text.

Is there a way to do that?

-brian