I can't wait to build a blockchain educational planet for all the users of URAllowance. I've got another onslaught of questions.....

1.) Can a planet be accessed directly upon logging in without having having to travel through Cosmos.
     
2.)Say I have built a planet that has multiple user created shops and other ways that users have discovered to monetize their time spent on my planet. I would want to promote it through a marketing campaign.
    a.) Would I be able to promote direct access to the planet from a third party or external login?
    b.) Would I be able to allow only members from another platform?(require them to also hold a membership to my app)
    c.) Will there be any ERC20 integration options for use only on a specific planet?

3.)This is where my third question would go.