how can I create my own custom settings that control my custom property-editor ? (settings I mean like toggle for disabling something or a placeholder but I wanna create a more complex one) is it possible?

Are you working with u13 or u14+ ? I created a thread not too many days ago with dropdown property editor. here: https://discord.com/channels/869656431308189746/1317150130755080324 Lee was nice to send me some docs and links to how umbraco does it for u14/15.

okay great . I'll check it out