Features questions

Sorry guys for bugging you all the time, but I have a bunch of new questions:

1) Is there any option or plan to implement "pick multiple items from the list" in incident template additional field?

For instance, the ticket template for adding printers to user's workstation. I want user to pick up 3-4 printers from the list.

2) Also, I've noticed that there is a Maximum additional fields allowed number. How can I increase it? We need way more for the templates we are building.

3) Correct me if I am wrong, if we configure mailbox in incoming email settings on our servicedesk plus on-demand, we will receive a ticket for every email in that box, right? Unless we Enable E-mail Command feature.