That looks very promising. In $ee mask there is some timer settings for some of the mode 4 parameters but they are disabled by default in most of the bins i checked.
It will be one time set until cleared for most of them.
Recently I have been working on patch to enable Eside aldl stream in mode 1. I also enabled mode 2 and mode 3 request from eside.
Patch is done and tested and will be released soon.
You will be very happy with mode 2 for extended memory coverage.
It dumps 64 bytes of memory from the address you specify.
Command is the same as mode 3. Just replace 03 with 02.

I will make request list for the features that will aid in tuning.
I`ve been thinking for poping window that have 5-6 parameters(which are also configurable from a list) to modify. Enter the data and send all the parameters in one string.
One limitation of mode 4 is that when you send new single command for example set AFR, all previously set commands are zeroed.
So all the modification must be contained in one single thread or every next parameter must be added to the existing command thread.