When using the "Start stopwatch at the end of last tag" option, a problem arises if I become inactive for an extended period, such as 30 minutes, an hour, or even longer. I want to keep this option enabled without the need to disable and re-enable it manually to adjust for inactivity.

A potential solution is an "Inactivity threshold" option, where I can specify how many minutes of inactivity are acceptable to include in the tag. For example, if the threshold is set to 5 minutes:
- If I’ve been inactive for 3 minutes, the tag would start from the end of the previous tag.
- If I’ve been inactive for 30 minutes, the tag would instead start from the most recent activity.
(Screenshot 3 illustrates this behavior.)