Azure Point-to-Site - connecting from Azure to on-premise machine

I have setup a P2S network and on my on-premise machine, I setup an ICMP firewall rule so that I can ping it's 10.0.0.x address. I can ping succcesfully from Azure to the on-premise machine using the IP address.  A couple of questions though:

1. How can I map a drive from a share on my on-premise machine to the Azure machines? Is it even possible?

2. Should my on-premise machine show up in the list of network resources that are displayed in the Azure portal dashboard for the virtual network?

3. I have not yet setup a SQL database on the on-premise machine, but my intent is to open just port 1433 for the SQL TDS. Is this all that would be expected for using an on-premise SQL database?

Thanks!

STom

STom