Map/mount a drive to a remote computer using SSH. 

sudo sshfs -o allow_other,default_permissions pi@192.168.1.150:/home/pi /home/pi/pi3_2h

Create local directory first to map to. e.g. /home/pi/pi3_2h

For PI5
sudo sshfs -o allow_other,default_permissions pi@192.168.1.112:/home/pi /home/pi/pi5

For multiple including passwords something like this

sudo sshfs -o password_stdin -o allow_other,default_permissions pi@192.168.1.111:/home/pi /home/pi/rpi4 <<< 'broadcast' &
sudo sshfs -o password_stdin -o allow_other,default_permissions pi@192.168.1.150:/home/pi /home/pi/rpi3-2h <<< 'broad1974cast' & 
sudo sshfs -o password_stdin -o allow_other,default_permissions pi@lszen94.ddns.net:/home/pi /home/pi/rpi0-94 <<< 'broadcast' &
sudo sshfs -o password_stdin -o allow_other,default_permissions pi@192.168.1.109:/home/pi /home/pi/rpi3 <<< 'broadcast'