Excel: Undo history clear after macro events

dear experts

i have excel file with macros.

noticed that whenever the events fires, undo history gets cleared.

by this user is not able to do undo as the button gets disabled

i have searched for all the possible solutions on net, but didn't found anything that will help me.

Solution To Keep Undo History

above link is what i am getting in almost all the logged issue in the forum.

but i am not able to use it, actually i don't know how to use it.

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is there any simple way to stop macros to clear "undo history"?

any help on this will be appreciated, as many users like me are waiting for a simple solution.

solution which can be used without modification, or can be easily modified.

thanks
MG