How woud I save a Gui in a plug in?

I am making a plugin were its a Frame with a textbutton that says create and when u click it, it pops up a text box and when you type something a create button appears when you click it it creates a new textbutton in the frame that has the name of the note and if u click on it a textbox appears and you can edit it than you click Save and it puts the text into a value inside fo the textbutton that we created earlier. I need help saving it so that in ANY Game or place that they are in it saves. I cannot figure out how to do this with

plugin:SetSetting or plugin:GetSetting