About model and data exchange with 3rd party solutions: Revit, Solibri, dRofus, Bluebeam, structural analysis solutions, and IFC, BCF and DXF/DWG-based exchange, etc.
I agree with that but I do not see a dimension setting in the preference>dimensions dialogue box that allows dimension to be shown as 5/8" instead of 0'-0 5/8".
I took a look at this in ArchiCAD 12 & 13, and found that only the second column under Display of Zero Feet & Inches has any effect in Interactive schedules. The other options work for linear dimension in the Floor Plan, but do not work in the schedules. So you can eliminate the zero for full inches, but not for feet. Looks like a bug.
I am still getting this bug eight years later in AC20 USA 5025, exactly as described in the last comments. Is it AC, or is it some legacy setting that I have failed to fix?