"Add Button" in share point code editor

[Gas_Control]

Hey everyone,

I have created a script to my SharePoint excel file but I am not able to assign a button to it as "Add Button" appears blur, how do I fix it?

[#2]

You'll have to save that script in your OneDrive, not in Sharepoint I think.

[#3]

@Jan Karel Pieterse Its already saved there but still the option to "add button" is not appearing.