Some New User Questions I have

Some New User Questions I have

According to the documentation, it's possible to edit the "Lead Sources" fields.  We need to edit these to "Walk in traffic, phone calls" and a few specific lead companies that we use.  But this isn't in the list of fields I have the ability to edit.

Also, I have removed some of the tabs I didn't need.  We simply need lead tracking.  Then when they sell, I need them to be called "Customers" and I need to be able to create reminders for certain events, like birthdays, 6 month anniversary from purchase date, and etc.  But Since I edited the tabs to just be "Leads" and "Contacts" I no longer have the ability to create tasks.

Essentially, I need just two things: Leads and Customers.

Another thing: how do I get leads off of the "Home" tab once they've been called for the day?