is it posible to play with 4 controllers ?

[waleed_uae9]

i tried to use 4 ps4 controlers in lilypad but it seems to work with 2 only
any one has a solution because i've been looking for days and trying but only PAD 1 and 2 works
also tried port 1and2 multitap but still only PADA1 and PADB1 only works

pleas help