Changing Details of an Employee’s Maternity Leave

Hi,

I have a tricky situation and am looking for some input and help from anyone that might be able to provide it.
We have an employee who is currently on Maternity Leave. She has asked that instead of coming back in two months like she was supposed to, if she can do other work (not the work she was previously doing but somewhat related) from home on a part-time basis for 6 months. After the 6 months, she would come back to her other duties (which include supervisory duties) even though on a part-time basis but would work in the office again.

I have a few questions/concerns about how we would go about doing this.

She has requested that we make these accommodations, and I don’t want it to seem like we are imposing these changes on her (decreasing her hours and giving her some different responsibilities) after a maternity leave. My understanding is that when someone’s job duties change, it is a different position and therefore you need a new contract. But how would we go about getting her out of her current contract ? Does she resign? Because she will be back in her previous position after the 6 months is done.

We also can’t decide whether we should be changing her job title. She will have a different role and work from home so in my mind that’s a change of job title as well, but then we have to give her the previous one back after the 6 months.

If anyone has any clarifying information or some guidance that would be much appreciated.
Thanks