this is probably easy to do but I don't seem to get it somehow. How can I fix the triggers of a composition widget in one place, so they won't move when resizing?
Not enough information:
Since the composition parts are fixed width, they use fixed width page pinning in this case.
Pin the composition parts (triggers and target) to the left, middle or right, and they will stay, where they are.
But since you are dealing with fixed width elements, they won’t resize or move in relation to the page, when you scale the browser window. You have to compensate this by using breakpoints.