use hotbar data?
 

i have been trying to find out if there is a way to attach a hotbar to another window as a child object (so when clicking on the main window wont put the hotbar behind it), that or attach idividual buttons like hotkey90.

im afraid this isnt possible because the dynamic data that controls hotbars looks to be hard-coded, that or i just cant find it :)

another way i have been thinking of "faking" it, is if you can hide/show a certain hotbar (like the 9th bar), and also change its size and location.

the mod i would like to make, is to attach 2 hotbars to the side of my recipe book. i know myself and many other crafters that ive talked to love the idea of having easy access to 20 slots right in there recipe book that could be used for a todo list or favorites.

any other ideas would be greatly appreciated as well

Nope you can't put a hotbar inside another wnidow, how ever you can set the one window to alwaysonbottom=true so that the hotbar will not go behind it. You might want to set alwaysontop=true on the hotbar also.