Splitting pdf with dividers

Situation and problem:

Right now i notice the only 3 options for splitting the pdf are

• per x pages
• per x file size
• per bookmark

But none of these make my work easier and mostly make me spend more time on splitting then it would take me to scan document per document per document per ... (you get it).

At the end of the day i have a whole bunch of documents of different sizes that i scan in 1 go to save me alot of time. Problem is the existing options don't help me with splitting the document up quickly.

Question:

Is there an option where you can for example select a page and "add divider in front of this page" or an option to quickly add bookmarks in the page oranisation tab (the tab where you split pdf's).