i want to carry oyt pcc load balancing to collect traffic from two lines
make the whole traffic coming from two gateways pass throw only one gate way in another
mikrotik device
so i can deal with two lines as if it is one line and one gateway
in this way
2 mega from one line + 2 mega frome the second = 4 mega but i want to put only one ip route in mikrotik so it will be helpful in putting scripts and making hotspot

any ideas??????????

i want the traffic from two gateways pass throw one gate way
then the traffic will reach the second device in this second device we will put only ip route and only two interfaces wan and lan not two wans an d one lan

the idea here

can i make the first mikrotik to be the gateway of the second mikrotik
in the first one i will make pcc load balancing
and in the second i will take the loadbalancing traffic coming from the first
then i will make my hotspot and give the traffic for the users

Yes, you can do all that without any changes to how you'd normally configure routers for those scenarios.

please explain

Explain what?
Just configure a router for PCC, connect a second router to it, and use the first router as the default gateway of the second one. Just like you asked. It will just work.

ok thanks alot