If your techs are inside your LAN behind asa5505 firewall and are trying to connect to and outside server out in another location over internet you don't need to open up these ports for outbound connections.

On the other hand, if you are hosting a Stentor server behind asa5505 firewall and want to provide access for outsiders to access the hosting server on ports mentioned in your post this can be done as follows in firewall.

1- Piblic IP for a one-to-one NAT for local server so that can be accessible over internet.

2- Configure firewall tcp service ports

3- Configure firewall access rules

e.i assume

1- Public IP is 20.20.20.20, Local Stentor IP 10.10.10.10, server seating inside LAN.

static (inside,outside) 20.20.20.20 10.10.10.10 netmask 255.255.255.255

2- Configure TCP service group

object-group service Stent_server tcp

port-object eq 6464

port-object eq 7575

port-object eq https

3- Configure access list and apply to outside interface

access-list outside_access_in extended permit tcp any host 20.20.20.20 object-group Stent_serve

access-group outside_access_in in interface outside

HTH

Rgds

Jorge