Is your feature request related to a problem? Please describe.
Previous locations can be unclear when a task may span days. This compounded with GPS inaccuracies make it difficult to read.

Describe the solution you'd like
It would be good to have a configurable displayed history and an ability to discard or hide previous history. Also maybe like a timeline or something being easily accessible and shown on the main screen.

This in combination with some smart merging of location points when they are extremely close together could it more clear to the end user so it doesn't look like a jumbled mess when GPS inaccuracies make the true location unclear.