When I create an Add-in, I can request Read permission for a single SharePoint List in the AppManifest.xml file. Later, when the user installs my Add-in, SharePoint asks her/him for the name of exactly one list to grant my Add-in read access.

I want my Add-in to have the ability to read from multiple lists from unrelated site collections, but I don't want to request read access for the entire tenant.

Please modify SharePoint Add-in security so the user has the option grant an Add-in access to multiple lists for which she/he has access across the tenant.

For example:
If a user installs an Add-in into a site named Food Manufacturing with lists named Equipment, Meetings and Processes, I would want the said user to be able to not only grant my Add-in read permission to the Equipment and Processes Lists but also grant my Add-in read permission to the Vehicles and Personnel lists of an unrelated site named Corporate Assets.

I need this behavior because a portion of my user base wants to collect information across several disparate locations of the same SharePoint tenant and summarize it all in a single place. I can probably do this by requesting tenant level read access for my Add-in, but that seems excessive and I don't think my users will be able to install the Add-in at that point since they shouldn't have that level of scope.