Can we make folder groups?

We have a file structure that is repeated over & over. See pic for example:

We have several different Programs & for each Program we will have several model years & inside each one a "Sent to Server" folder. (Hundreds of "Sent to Server" folders)
I would like to make a rule that will watch all of the "Sent to Server" folders & Trash any files that have been in there for longer than a certain time. Lets say 3 minutes for now but I will set it up for months when I figure out the correct way to do this.
My first thought was can Hazel Group folders? What I mean is lets say I make a set of rules & want to attach it to 300 folders, is there a way to have 1 folder in the "Folders" column but it represents many folders. If not this could be a very user friendly addition.
Example instead of just putting one folder in the "Folders" column (Which is good) you could maybe add a thing called a "Folders Group" it would look a little different but then any folders that you drag onto this "Folders Group" would be added to it & thus the rules would run on them all?!? This would only be good with a low amount of folders (I would not want to drag 300 folders in this case) but may still be an easy way to approach connecting 30 folders?
So what I have come up with seems to work but I need to know if this is the best, safest, goodest way to set this up. I do not want to have anything deleted or altered that should not be.
I have the 2 rules below on the folder "PROGRAM TEST All"



I did try to add some way to have it only work on folders with the name "Sent to Server" but could not get that to work.
Is this the best way to get what I need with out having to put all 200 "Sent to Server" folders into the "Folders" column?

We have several different Programs & for each Program we will have several model years & inside each one a "Sent to Server" folder. (Hundreds of "Sent to Server" folders)
I would like to make a rule that will watch all of the "Sent to Server" folders & Trash any files that have been in there for longer than a certain time. Lets say 3 minutes for now but I will set it up for months when I figure out the correct way to do this.
My first thought was can Hazel Group folders? What I mean is lets say I make a set of rules & want to attach it to 300 folders, is there a way to have 1 folder in the "Folders" column but it represents many folders. If not this could be a very user friendly addition.
Example instead of just putting one folder in the "Folders" column (Which is good) you could maybe add a thing called a "Folders Group" it would look a little different but then any folders that you drag onto this "Folders Group" would be added to it & thus the rules would run on them all?!? This would only be good with a low amount of folders (I would not want to drag 300 folders in this case) but may still be an easy way to approach connecting 30 folders?
So what I have come up with seems to work but I need to know if this is the best, safest, goodest way to set this up. I do not want to have anything deleted or altered that should not be.
I have the 2 rules below on the folder "PROGRAM TEST All"



I did try to add some way to have it only work on folders with the name "Sent to Server" but could not get that to work.
Is this the best way to get what I need with out having to put all 200 "Sent to Server" folders into the "Folders" column?