pgadmin feature request/feedback

Hi, I have just tried out pgadmin and have a couple of points I would like
to give feedback about:

1. pgadmin can create an ERD from a database, which is awesome but when
working with large schemas especially the ones you didn't develop yourself,
it can get a bit overwhelming. Sometimes I just want to know relations of a
specific table to keep it simple and understand just that specific part of
the schema. In this context it would be useful if the user could right
click on a table and choose "create ERD" just as with the database, but
then the ERD tool would create the diagram containing just the table and
all the tables which have direct relations to the chosen table. For
example, the oracle sqldeveloper can do it (clicking on a table and then
choosing "model" tab) and I use it a lot, equivalent to that in pgadmin
would make it even easier to prefer postgreSQL over oracle.

2. When there are many different databases on the same server I find it
difficult to keep an overview in pgadmin. I guess that pgadmin is meant for
the database administrators where the user can access all databases on the
server, but that is often not the case for me. Most of the time I only get
access info for one specific database which I have to work on, with that
info I have permissions only on the given database, I can not access all
the other databases running on the same server. I am aware that a user can
see all the databases on the server and also all the tables in the
databases by default, but that user can not access the table's content on a
different database than his own and therefore not work on the other
databases. As it is right now in pgadmin I can only add a server connection
with the user I'm given and that user and password then is fixed for all
the databases on that server connection. If I'm given a second user info to
access a second database, I have to add another server connection, which
would be the same server just a different user. Then it is kind of strange
having 2 same servers for 2 databases which are actually on 1 server. I
then would have to keep in mind which server connection is for which
database and always search the one I currently need jumping back and forth
between the server connections.
What would make sense here is a possibility to store user and password for
each database instead of each server additionally to the administrator
credentials. When adding a connection, make a checkbox next to username
asking if it is an administrator user or a regular user and then if it is a
regular user let them choose which database to access with that user and
store that credentials for that database. This would also enable another
useful addition, a setting where users can let pgadmin hide the databases
on a server, for which there is no access info stored (as long as there is
no administrator access info supplied).