when in the two windows different documents are shown: in the second window I can type words, but I can not save the document (nor with ctrl+s nor with the save-symbol of the tool-bar) to save the document: I have to activate the corresponding tab in the first window, and then save is possible
it would be good, when save is possible in the second window, no matter wich document is shown in the first window
possible solution in Lubuntu 21.04 for example, in the file-manager PCManFM-Qt, there is also the possibility to split the window; but on each window there are tabs; it would be great to have this in Geany; split-window with tabs on each side should be not a plugin but a core element of geany, because it is so cool at the moment I don't know any editor in the linux world which offers as option a split window with tabs on each side