[ic] Authorize.Net Authorize?

[Fred Eisenhauer]

I'm new to this, so bear with me.
Regarding Authorize.Net support in Interchange:
Does it support authorizing transactions when order is placed, then
settlement later?
(stock needs to be manually checked while transaction is pending)
Are there GUI's for managing these transactions, or does everything have to
be built?

I didn't see anything in the on-line demo where payments are actually
submitted.

TIA,

Ike