M4300 stack with over 10Gb lag groups

Hey

I would like to make a stack with six 10Gb links between two m4300 switches.

I use Ligtware Ubex vido converters from with two DAC cables that go to the switch. When sending 4k images, the lag group is about 12Gb in size and the switch can manage the lag group well. The Stack between the switches does not know how to divide the LAG group into several 10Gb lanes, but tries to put everything in one cable and the next lag group in another. Is it possible to get the stack to handle LAG groups with a data flow of more than 10Gb?