i find it easier to erase mcds than to make new ones/assign each frame is more efficient to do it that way when starting a fresh mcd.. simply tun all imaged into tiles then edit them down..rather than start from zero and edit them up twice the work
Assigning PCKs to MCDs is very easy on the latest versions - you only need to enter the PCK reference number on the first frame and the other 7 frames are assigned the same number automatically. This was already a major improvement made by volutar over previous versions but you still need to edit/check a ton of other settings for each MCD entry (LOF settings, DieMCD, armor, sound, light block, etc.), so what you'd gain from your suggestion is actually minimal compared to the rest.
I had considered asking volutar so that you could do with the LOF settings the same as the frames (editing the first one changes all the others to that value) but I realized that it would actually increase the work load, since a lot of tiles only require editing a few LOF entries.
MCD editing takes a lot of work because you need to edit/check all those settings. One tip I give you is precisely not to create new MCD files but copy and rename instead the existing ones. Then you can simply recheck all the settings and edit the values you need, rather than creating a new MCD file and having to introduce values for every needed setting.