If you have two partitions with the kickstart/kicklayout file they should show up. (the partition might need to be set to bootable?) You just "need" to insert a bootdevice into the kicklayout so that it will boot from the correct device. (otherwise it will load the kickstart you have selected and then boot from the parition with the highest bootpriority)
check out the sys:documentation/kickstart dir to find out more about the bootdevice and how to set it up. There should be a file called bootdevice or similar in there somewhere.
I did test the latest 68k build with mui4.0-2015r1 and i have no problems there so a fix might not be needed there, but maybe this is bad behaviour that should be fixed anyway if possible?
I'm happy as long as it doesn't give me any problems.
I'm a layman without a clue about how much time it would require but you can be sure that i didn't think that if i throwed up 30-60 euros that the work would be done :D
It was a great suprise to find out that 64 bit support had been added when i downloaded the latest dopus a few days ago. It has been so quitet around dopus lately so i didn't expect to find any new features.
I do not have any 4gb+ files but i will continue to use & test it everytime i use my Amiga.
I will install the new version on my classic amiga too (currently i'm using the orginal version there). Can it display large file & partitions now or is this an OS4 feature atm?