Enabling custom button in mobile offline mode in dynamics crm

we are following the below link to enable custom button in mobile offline profile in dynamics crm

https://www.inogic.com/blog/2021/02/how-to-show-custom-ribbon-button-while-working-offline-on-mobile-device/

But we are not able to see it in offline profile- 

Has anyone ever impelemented it?

Any suggestions?