I have my SO account registered in Gmail. In my office I couldn't access Gmail due to proxy settings. So my question is, if I create a new account using Stack Exchange, and merge them, I asked for login and password of Gmail account or not? After merging, can I switch accounts to ask question and answer?
You can add multiple email ids to login to the same account. Go to your accout page, and you'll find tabs like
in the top-right of the user-information. Add as many logins as you like by clicking on
The direct link should be this.