After some trial and error and testing, I have determined (that for me) the following process is the most efficient way to include shared media and fact/event information in Narrative Reports, Scrap books, and share with Ancestry.com. It is a bit awkard but it does work and it is accomplished entirely within RM without having to use external scripts, etc. My tests have confirmed that the shared fact/event sources are included in the Narrative Report end notes, and creating media tags against the "sharee" person's general profile includes the media in scrapbooks. The "Comment" placed in Ancestry.com alerts Ancestry readers that there are shared records in RM for the "sharee" person, and how to review that information and media in Ancestry, even though it will not transfer to the "sharee" person in TreeShare.
I mostly use sharing to expedite the inclusion of additional family members in U.S. Census facts, and it works just fine within Roots Magic.
Shared Facts/Events/Media Posting Instructions:
1) For each person that a fact is to be shared with, share the fact or event from person(1) with person(2..n).
2) Tag the shared media for the fact/event to the "general person details", in the "Sharee" person's profile.
(This will allow printing in reports and transfer to A.com in TreeShare). You can repeat this for each person the Fact/Media is shared with.
The media in the persons gallery can then be rearranged if needed or as desired.
3) Run a test RM report, or scrapbook report, to confirm the data and media will be included.
4) Use TreeShare to update Ancestry.com.
5) Place a "Shared" comment (not note) to Ancestry.com for the "sharee" person.
[Note: One or more events/facts for this person are "shared" with one or more other Roots Magic tree members. These shared facts/media will transfer to Ancestry.com using Tree Share for the "principle" or "sharer" person only. The shared facts/media for the "sharee" person will not transfer to Ancestry.com via Tree Share. However, the shared facts/media can be viewed in Ancestry by referring to the "principle" or "sharer" person's record (typically the head of the family, father, mother, sibling, or spouse of the "sharee" person being viewed. (Example - head of family for census record).]
Hopefully, RM8 may address some of this concern.