Hi Polsen, aart, & Chicken-lovebirdchihuahua. Here's my pics of the clear plastic canvas (from craft store) incubator dividers. The plastic is soft & easy on the chicks with no cuts/nicks or getting caught in bent wires), they can walk on it without slipping, flexible, can cut with scissors to trim out to any size needed, washable, & can be attached with pipe cleaners or twist ties. The eggs can be divided for hatch dates (with caution of opening incubator during lockdowns & messing up the other egg's temps & humidity). You'll see in the pics that I also used cut out egg cartons to hold the eggs in place only during lockdown & hatching to keep the hatchlings from rolling the other eggs around & messing up their position in egg when ready to pip & hatch (thus increasing the hatch rates). Hope this info can be adapted for you in your style of incubator.
Sorry to take so long in posting this, but these pics were from 1980's (2009 ?, eggs & chick hatching hasn't really changed since then, just newer ideas) for some things & had to find them in my old files, my BYC name here used to be
save the favs. There most likely be lots of pics (& general site info) under that username when I started some monthly "Hatch-along, come join in" (here's one:
https://www.backyardchickens.com/threads/july-hatch-a-long-come-join-in.362278/ ), & did a lot of incubating back then with the goal of increasing my critically endangered bantam blue salmon faverolles (real sweeties, but rare & had to order eggs from all over). Best wishes.
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