Idea is great but needs to have some changes

So I thought this app would be great for me to log my sugar levels. However I try to change the time to add the previous sugars. Because hey im not home all the time and you dont always log everything righ that second. but you do not have the option to change time. You are able to input the time but cant go forward from there. Please fix this feature. I think the idea is great and very helpful but needs a little more work.

Alison Portelli about DiabeticPad