Beta Released (12.11.0.7)

Beta Notes
Proxy Connections
“Authentication Required” type proxy connections are now supported in Toad.

So, with this kind of set up:

create user app_user identified by app_user_pw;

create user end_user_ar identified by end_user_ar_pw;

grant create session to app_user;

grant create session to end_user_ar;

alter user end_user_ar grant connect through app_user authentication required;

You would connect in Toad like this:

Username: app_user[end_user_ar]

Password app_user_pw[end_user_ar_pw]

Note that SQLPlus does not allow these types of connections, so if you attempt to launch SQLPlus from this kind of connection in Toad, it will fail.