How to change my facebook account and page?

When I try to create RSS feed to Facebook page, I input one facebook page and next I wanted to change with another facebook account/page name, but I cannot change it.
Even I tried to select "add new connection", it shows the page name that is put first time.
Please let me know how I can change to new facebook/account/page.
(I know that I can change with other page which is in same facebook accout, but I want to use the page which is in the different FB account)
Please let me have how I can do this.

Best regards,

Ken

Hey @Ken Yoo

If you want to access the different Facebook pages from a different account then kindly log out to your Facebook account from your browser and then add a new connection.

Kindly try this at your end and let us know if that helps you out.

I tried but cannot.
I want to write in my facebook page name which I want to feed. But I cannot do it.
I think only default pages of one fixed FB accout are shown for selection.
I like to use different FB account. But no way.

I tried but cannot.
I want to write in my facebook page name which I want to feed. But I cannot do it.
I think only default pages of one fixed FB accout are shown for selection.
I like to use different FB account. But no way.

OK, I made a video which I want to get answer.
Please see attached.