So R1 is a router providing one subnet1 to HEX SWITCH1
So R2 is a router providing one subent2 to HEX SWITCH1
HEX Switch 1 is connected to HEX Switch 2
Hex Switch 2 should be able to supply on thespecified ports, subnet1 or subnet2??

So what are you asking, how to config Hex Switch1 and Hex Switch 2??
This seems rather simple, what am I missing?

All MT devices should be on the same trusted or management IP subnet ( get their IP )
Do you have one??

Are you saying that the subnets coming into Hex Switch1 are not on vlans?

Finally what is the point of PC1 having complete access to SUBNET2
and PC2 having complete access to SUBNET1 ??

Dont understand the use case ???

YOu contradict yourself once again,
In the diagram you show pc1 able to access the entire other subnet and PC2 able to access the entire other subnet.
Now you state you just need pC1 to reach PC2 and PC2 to reach PC1.

If you dont know what you want how am I supposed to figure it out LOL.
As for the other questions, if you can answer them great, if not I will move along.