TheStrictNein

It is possible, as I just did it for myself today. Basically, load the STEP CR patch and LOTD in xEdit, then apply a filter for Conflicts. Go into Book Covers Skyrim.esp, and for every entry where the text is red, look for Red highlighted rows. You'll want to drag and drop any references in LotD that are being overwritten by the CR patch to the CR patch, which will add LotD as a dependency, APART from Book Texts when they show as a conflict as those are updated for CACO. Do the same for BCS - Lost Library. Once you've done this, right click on the CR patch, select "Apply Script", then choose the Reference Masters script and click okay. In the window that appears, select both BCS and BCSLL, then click ok again. In the message tab of the main window, it will tell you every entry that references either of those as masters. Simply find those entries in the CR patch, and fix them to reference LOTD instead of BCS/BCSLL. Then you can right on the CR patch again and run the Clean Masters command, and BCS/BCSLL will be removed from the CR patch and you can save and close it. I'd be happy to provide my version of the CR patch that's updated for LOTD instead of BCS, but I'm not sure how the STEP team likes those things to be shared. EDIT: Here you go: https://www.nexusmods.com/skyrimspecialedition/mods/39332/