Shortcut to entering time spent (work log) to call

Is there a way, or if not can the functionality be added, so that from the list of open or pending calls you can click an icon in this list next to a call and it will pop up the 'add work log' dialogue box so that time spent and a brief description could be more easily added as you work on calls.

Some of the calls we have are open for some time and a large dialogue builds up in them. To add time to the work log you have to click on the call, scroll past all of the dialogue in the call and then click on the add work log button. Can a button be added to the pending calls list (like the existing note button) so we can easily a quickly add time spent and dialogue to calls without having to go into the body of a call to do so ?