There is a way to do it (second try), not very clean solution but a solution at least.
First of all you need to create a boolean custom field named Send to report (or what you want).
In the issues view select all the issues that you want to watch, then right click on the selected issues list and the contextual menu is displayed, change the value of Send to report to Yes.
Go to Overview tab, then select in the Spent time section the link Report, filter by the custom field Send to report.
It's not a clean solution because changing a custom field in order to report something will cause issues historial changes (+ email sending).
In any case, I hope it helps :)