Be able to change developer options: Bluetooth Adio options

[p50kombi]

So I have a bt dac, which uses LDAC as the audio profile.
Although LDAC is fully supported since android OREO and it works really great with my HTC u11, whenever I disconnect and connect the BT dac again to my device, the Bluetooth Audio LDAC Codec reverts back to Best Effort (Adasptive bitrate) instead of the Optimised for Audio Quality setting I wish it to be.

I would like to make a Automagic flow that when my bt audio dac connects, it changes this setting back to Optimised for Audio, but can't find the action in automagic.
I can find and have used other system variables and system settings in other flows, but I just can't seem to locate this one.
Any help would be greatly appreciated @martin