Saving a Suggestion
Saving suggestions is only available in the Designer when you are preparing for a client (when you go to Manage Client > Open Designer). In the in-person sales meeting you will save galleries to the cart rather than saving a new suggestion.
After you have placed products on the wall, either via templates or adding new products, and you have applied photos to all of the products if you want, whether through the photos panel or the product itself, click on "Add to Suggestions":
Deleting a Suggestion
To delete a suggestion, click on the suggestion slide:
Choose "Delete". Confirm that you'd like to delete the suggestion and it will be removed.