At present we do not have immediate plans to support UDB in Modustoolbox.
We currently have some other features/fixes being implemented and should anything change regarding your request,
you will be the first to know. But definitely this is something we will look into to make sure your experience remains seamless when using our products.
I'm in agreement with Rolf.
My formal educational background is as a HW engineer. I originally designed with CPUs interfacing with discreet logic gates and eventually migrated to PLDs and PGAs. I loved it when I started to use PLDs and PGAs. It allowed the defining of HW using a form a SW.
When I started SW programming on MPUs, I noticed that much of what I wanted to do was limited in scope and performance based on peripherals available in the MPU. These constraints give me a better understanding on how a good HW design can make the job of SW easier, faster and potentially more robust.
When I started using the PSoC1 series MPUs I was amazed on the flexibility of Digital and Analog functions.
When I started using the PSoC5, I loved the greater flexibility of the UDBs and the digital and analog routing. With this series, I was able to optimize my designs for performance as well as minimize SW because I was able to create sophisticated HW state machines easily, quickly and the configurable IO allowed me to debug a design-in-progress much quicker.
I realize that there is a price/marketing cost to the flexibility of the PSoC5 and the goal is to make the PSoC6 more marketable. Please consider a future sub-series of PSoC6s with the flexibility of the PSoC5.
I will continue to evangelize the the PSoC product line to my colleagues.