Thanks for the reply.
The markings on new switch are COM1, COM2, L11, L12, L21, L22.
To confirm i understand correctly,
left hand side (all red) would go
1way - L11
2way - L12
COM - COM1
and right hand side
1way (blue) - L21
2way (red) - L22
COM (yellow) - COM2
Cheers