Modbus multiplex registrer

Hi,

currently I try to integrate my weishaupt heatpump, which is based on a carel controller, using modbus tcp.
there are a a few registers, especially for time schedules, whiche are multiplex registers.
this means you have to write register 1 first to value 1 to access register 2 with time schedule a.
further you have to write register 1 to value 2 to access register 2 with time schedule 2.

Is it possible in ha to achieve this goal?

thank you!

oliver