How to select multiple sketch endpoints with selection box?

I'm needing to select a large number of sketch end points to assign them a either a vertical or horizontal relationship. This comes up mainly when I am using a linear pattern of lines, and when trimming the lines all of the endpoints become unconstrained. So I have to select each endpoint one by one to re-constrain them. Is there a way to select more than one endpoint at a time other than having to click on each one? I've tried the selection filter (pink funnel icon) for endpoints, and it does not work. I would think you could just use the blue selection box to select only the endpoints of lines and not the lines themselves, but unfortunately that does not work either. Major downfall if there is no path forward here as I am needing this feature in nearly all of my models.

SolidworksSketching