Locked atlas? how do I unlock?

[jak4123]

I was walking around with the atlas, mapping things and then it just locked. Now I cant hold the atlas in my hand to look at the map and the map isn't updating.

Im in creative so I don't need to add maps and there are only 225 maps in the atlas, so it isn't full. So how do I unlock the atlas so I can go back to using it?

Also, while I have you, is there any way to change the max number of maps in the atlas. I saw that the default was 512, but I might want more.

Thanks for your help!

[MehVahdJukaar]

Shift click

[jak4123]

Shift click

thanks. good mod