Hi Dave,
You mentioned you have several devices … I have 4 of these, and soon found that using lovelace entity cards took a lot of space to display, when I really just wanted a compact summary. I spent time fiddling with Frontend cards from HACS, and came up with:
The column alignment is annoying, but as a newbie it does the job for now. It uses a combination of HACS frontend layout-card, mini-graph-card and several multiple-entity-row components. Happy to post my lovelace card configuration code if you like.
FYI, the HS110 and KP115 are not currently used, so showing zeroes. I also found that naming the switches with sensible names, they quickly became tedious and confusing, so renamed the permanent switches and had to manually change all the references.