On the toolbar I don’t have where I can change the sizes of the project and see the dimensions.
I have in toolbar now where you change select font and size of the text not the size of the project.
How can I have on the toolbar again? What do I do to get it back?
Go to the Window menu and make sure ‘Numeric Edits’ is enabled (checked):

If that doesn’t work, restart LightBurn while holding the shift key to fully restore the window layout to the default.