If you'd like to use Moresampler as a resampler in UTAU, here's a guide to installing PC UTAU on Mac.
http://utaforum.net/resources/install-windows-utau-on-mac.334/
You'll then be able to use Moresampler the way you'd use any other resampler/wavtool.
However, if you want to use Moresampler's auto-oto function, you need to be able to run Wine from the command line. Here's how to set that up:
https://www.davidbaumgold.com/tutorials/wine-mac/
You only need to go up to part 3. Once Wine is set up, you can "drag folders to moresampler" for OTOing by running the following command:
Code:
wine path/to/moresampler.exe path/to/voicebank_folder/
Where the paths are where you have the files stored. For example, if you have Moresampler in an UTAU folder on your desktop, the path would be "~/Desktop/UTAU/moresampler.exe"
Check the exact folder and file names to be sure!