Staff have been trying a plugin that makes it easier to post between multiple accounts. This tool is "Linked Accounts" I have recently just enabled it for all users. You should be able to easily swap between accounts if, if you have multiple linked together. If you need assistance in getting your accounts linked, you must have first tried to do it yourself, you can message a member of staff and we can help you get linked up.
Feel free to message me if you have any questions.