Two units, one shelly pro 1 and one shelly pro 1pm. One of them in AP modus

Hallo,

I am going to use a RJ45 cabel from my router to the Pro 1 and the Pro 1PM. They will be situated in my pools machine room about 20 meters fromt the router in my house.

I wonder if it will work with Lan cabel between the two shellys or I need a split before them?

Another question, one of the shellys must be set i AP mode because I must have wifi there (shelly H&T). Will that confuse the other shelly pro?

It's a little urgent, I need answer as a electrician come in the middle of the week.

Can I use lan to the first shelly pro 1 and set it in ap mode. Will the next shelly pro 1pm be able to use that ap? (5 cm from one to another).