Can all the functions work with daisy-chain any limitation? Like IR/RS232 and USB signal?

Example :

3 x USB touchscreen

10 screens with IR or RS232 (power ON/OFF)

The IR and RS232 could work with all the VE89X0R in a daisy-chain connection.

The limitation is that all the VE89X0R will get the same command.

For example, if you send a power on command, all the TVs/monitors will all power on.

For touchscreen, it will be ok.  Because the signal is from R to T.

Also, only 1 video could be display to all the touchscreen.