Thanks! I've installed the geany-plugins package from here: https://www.archlinux.org/packages/community/x86_64/geany-plugins/ but MultiTerm is not among the plugins. I guess, I have to install it manually.
The maximum number of Scrollback lines appears to be 5000. I would like to increase it, but it's ok. I'm closing the issue... -- You are receiving this because you are subscribed to this thread. Reply to this email directly or view it on GitHub: https://github.com/geany/geany/issues/2528#issuecomment-644195924
