Of course. Every task manager do it, that your completed task are hide or visible, but when they're visible you can see everything concerning the task. Include attachements, evaluation of task (phone call for examp.) etc. When I do a project where number of tasks and meetings is necessary I need to know what tasks I've already done and to have there notes about results of tasks (what was meeting about etc.)
Of course. Every task manager do it, that your completed task are hide or visible, but when they're visible you can see everything concerning the task. Include attachements, evaluation of task (phone call for examp.) etc. When I do a project where number of tasks and meetings is necessary I need to know what tasks I've already done and to have there notes about results of tasks (what was meeting about etc.)