hey Joey515,
within Cubasis there’s no option to switch from percentage to milliseconds…
If you own a desktop Cubase you could import ur Cubasis projects via the Cubasis Importer: http://www.steinberg.net/en/support/content_and_accessories/content_and_accessories_cubasis.html
and then check out the values Cubase matches for the Cubasis project.
For the compressor: Release 100% should match 1000ms and Attack 100% 100ms
kind regards
Ludwig