How can I place multiple retail buildings and run Generative Design at the same time?
Generative design now supports placing multiple retail assemblies on a single parcel and iterating across multiple assembly tags within the solve filters.
To place multiple retail assemblies on a site and have generative design run through solve options, first active generative design and place a surface parking or retail with surface parking in the region/site.

Next, place multiple assemblies on the site by dragging and dropping them to the desired location with the site.

Activate the generative design and the pinned parameters menu by clicking the GD sparkle icon.

Next, within the Pinned Parameters menu, review each assembly added to the site, toggle Locked Location on if location is to be locked.
Then, select the relevant tags that can fill the locations for each of the assemblies if desired. This allows the solves to run through options with additional retail tags.

Note, additional pinned parameters can also be adjusted at this time like the stall angle or circulation type.
Finally, select the schemes to add to the deal.

The complete workflow is reflected below:
