Feature Request: Custom order for index

[TectonicKestrel]

This plugin has done almost everything i wanted apart from sorting the order of the index in the order I would like it.
I use the Make.md plugin to sort the order in the file list on the left hand side and would either like this plugin to copy that order, or to allow a custom order.

I am documenting my progress through a course so having the order that matches the course would be very beneficial.

[judisohn]

I'd also like to be able to sort indexes by created or modified date so the most recent file is at the top.

[tralce]

I'd like to be able to sort folders to the top of the list.