"Who does What, When" report
 

Again, sorry for asking what may be a novice question. I tried to search for this but the search engine here considers the words "who" "what" and "when" too common to use as search criteria.

If anyone is accustomed to MS Project, there are a variety of canned reports in the app. One of the more common is the "Who does What, When" report which basically spits out a report, grouped by resource, of what tasks are assigned to that resource, when they start and when they are due.

Does such a report exist in Omniplan?

See the Export command, format type HTML Resource List...