You can only install free apps and partner-friendly apps.
You can only test orders using the Bogus Test gateway or by enabling test mode for your payment provider. You can't test orders using real transactions through active payment providers..
You can't remove the password page.
SIMPLE
All we need to start is your name email and preferred STORE NAME
exact store name maybe already taken so send a few
THE SEOCONSULTANT SHOPIFY EXPERTS
SET UP USUALLY WITHIN 48 HOURS
WE ALSO OFFER ANOTHER SERVICE TO FIND EXPIRED DOMAINS FOR NORMAL REGISTRAR PRICES TO ADD TO THE STORE IF REQUIRED
AND PACKAGES OF PREMIUM SHOPIFY THEMES