In Visio, how do i create a toolbar that contains my most commonl.

[new visio user]

I am trying to draw some business process models, only I find that the arrows
that I want are not in the toolbar for business process models. so my
questions are:

1) Where can I see a list of all available arrows ?
2) How can I ad these to my toolbar ?

A search on "arrows" generates over 100 hits and creates a toolbar that is
not really very useful.

Thanks