Hello:
1) Multi-select the rows that you want to repeat (say rows 1 to 10), click on "Format" on the menu bar, then "Rows" then "Freeze". You will see a faint blue line under the last row (in this example between rows 10 and 11). Rows 1 to 10 will repeat on each page.
2) You mean in actual inches? None that I know of, other than printing the statement. I've never found it necesary though. Adjust the row height(s) and preview the report.
3) Alas, no "print to fit"!