hello
peace be upon you
yes you can
use this script for enable trial time
ip hotspot profile set login-by=http-chap,https,http-pap,mac-cookie,tria
l [find name=xxx]
and use this script for disable trial time
ip hotspot profile set login-by=http-chap,https,http-pap,mac-cookie [find name=xxxxxx]
edit (xxxxxx) to your profile name and edit (login-by) and set any Choose the options that suit you