Dashboard: Hide Calendar and Overdue Items without tag

For discussion purposes, starting a thread:

I have several different clients/companies I work with and I have to switch between them during timeblocks in the day.
I would be really helpful for me to be able to context switch and not see today, overdue and other calendar notes except ones with the tag of the company I'm working on.
The folder inclusion is helpful for the project notes, but a lot of my notes are entered on calendar notes on a particular day, or I put them in calendar notes and >date them and want to see only those company items in the section for today or tomorrow or whatever.
Exclusion of items using a tag is too hard to do because new contexts come up all the time and some todos have no hashtag.

When I'm focused on one domain, I don't want to see all the calendar todos and overdues from every domain, including my personal/home items.
If I had this, I would use folders and note-tags for project notes. And for calendar notes, I could train myself to always attach tags if I knew it would help focus this view.

For me, the ideal:
If I am in perspective ACME and the "only show items tagged" (new) field is set to "#acme", then:
a) In the today section I would only see items with the #acme tag [same with tomorrow, yesterday, etc]
b) Overdues would only show me #acme tagged items
c) The other sections would show as normal, if they match the inclusion/exclusion criteria

I could be happy with this for starters. But...to be a little greedy, when I first wrote the deduping code for tags, I wrote that if something is in a tagged section, the task is listed there and everything else falls beneath that in the order for deduping. I think you later made it so that this order could be variable (thank you) so I would then suggest:

d) If you have this feature set, and an item is in a calendar note, but matches the tag, it first shows up in a calendar section, not the tag section.

What I mean is, if I have a note with this todo:

• something #acme >todaysDate

In today's world, if I have a tagged section for #acme (with dupes off), then this will not show up in the today section, it will only show in the hashtag section.

I would prefer to see it in the Today section (not the #acme tag section) so i know I have to do this TODAY
And then tomorrow, it would be in the OVERDUE section