The solution that worked for me was laughably simple, which makes it more frustrating that it took so long to find the answer. In my calculation view, I did not set the 'Data Category' to cube. See the screenshot below:
Is your data category set to Cube? If not, set it to Cube and activate the view. It should now be visible in IDT and other BOBJ tools. Let me know if that works.
Thanks,
Rob