get-acl display groups and search groups inside

hello,

i would like to know , if its possible to get members of local groups in acls and display it:

Get-Acl \\frhomassfs01\Applicat | Format-List -Property {$_.accesstostring }

i can get groups inside the share but i want to search groups members of all and display it

exemple:  LG_GROUPS inside the acl , i want a search of  the GG_ group member of LG_GROUPS