Is there any way to create custom views, like in Thunderbird & Evolution?

Question

Hi Folks,
I have recently switched to Mac. Before this I was using Linux. For mail I used Thunderbird (TB) for many years, and then eventually switched to Evolution Mail (EM) for its smoother integration into Linux.
On both TB and EM I revolved my work flow around custom folder views. As new email came in I would label it (on EM, or tag it on TB). I have numerous inboxes (email accounts) so I would generally be starting out in a smart folder that displays all mail in each inbox. I would most of the time view that smart folder with a Custom View filter in place. The filter would simply display ONLY mail with NO tags/labels.
Once my filter inbox showed NO messages it meant I had labeled everything. I would them use other smart folders to display mail with certain labels AND NO "Completed" label. That way I could go to my "Reply ASAP" folder and see what needed my immediate attention. Each email I replied to I would then add the label COMPLETED and it would vanish from my view.
I explain the above in case someone has specific suggestions on how to achieve a similar workflow on Mail.
In short, what I am wondering is this:
- Is there a built in way to filter a folder on the spot (with a drop down list of predefined and custom Views) --- I have looked and so far did not find this feature
- Is there a way to do this with a script or add-on? I have looked at many and not found a suitable one yet.
I am appealing to the knowledge of those with more experience in Mail. It is new to me.
I am currently using TB on my Mac because it gives me the above feature. BUT it does not have the same degree of integration with the OS and other Mac specific apps that Mail has. Thus I am keen to stick with Mail.
With thanks,
Jonathan

Answer 1

In addition to above:
I have installed a trial of Mailtags. It certainly improves the tagging capability of Mail.
I have also looked at the Smart Mailboxes and Smart Mailbox Folders.
As far as I can tell, however, there is no option to set up a smart mailbox that ONLY shows message with NO LABEL or NO MAILTAG (as the case may be). I can display messages with particular TAGS but not NO tags.
Is there any way to add more options to the Smart Mailbox filter system?
Cheers,
Jonathan