As of firmware 6.0, Morro Data supports the following RTC options (configurable in MCM -> File System -> select Share -> Advanced -> RTC):

Business and Enterprise Plans without RTC for Design

Design Collaboration Plan or Business/Enterprise Plans with RTC for Design

File Types Supported by Category

RTC typeFile extensions supported
Revit.slog, .rws, .dat, .rvt, pulse-*.tmp
AutoCAD.pdf, .dwg, .dgn, .ds, .dst, .dxf, .dwl, .dwl2, .dbl
Adobe CC.pdf, .indd, .idlk
Office.docx, .doc, .csv, .xls, .xlsx, .ppt, .pptx, .pub, .pdf, .laccdb

Note that the above chart is just a general guideline and does not express strict and complete rules for which files are supported.  For example, corrupted .rws files (in the form of $file_backup/corrupt.rws) will not get RTC-enhanced handling.