yes it won’t be served in your planning project, but it will be served in reality.
in Atoll, you should be able to find a “computation” zone or something equivalent. I work with A9155, based on Atoll technology, and that feature exists.
for info about BTS design, you’d rather google it. Vendor documentations are usually extremely complicated and it’ll take you a while to understand the simplest things…
good luck for your project 🙂