F5 APM EDGE client Customization

Hi,

Can we Customize F5 Edge client (SSL_VPN_CLIENT software), the following are the requirement

1) Name Edge_Client to AAAAAA

2) We have different Realm users, can the Edge client remember my last Realm user login ??

  (User will select Realm user type by a drop down menu on logon page, in our case we have 3 different Realm)

Need your suggestions/guidance for the same.

Thank you