Assign Excel script to button option

[Excelownik]

Dears,

Is there any way to assign script to Button in Excel 365 in Webside version ?
I don't see "Add button" option in related menu. (It's in polish language ) but for sure there is no such option. In the internet I saw print screen with such option.
If you have any idea why is that I will be very grateful.
I see just options (translated into English):

• change name
• make a copy
• Share
• Make a flow
• Delete

 

[severynm]

According to the docs, the feature is still in preview. It's in the process of being rolled out: Coming soon: Run Office Scripts with a workbook button (see last comment)