Allow external users to participate in planner

When you have create a Task in Planner within teams or group and you assign those tasks out to other team members, there should be an option to send email notification to the assignee when comments are added.

I wish to save a plan as a template with template tasks that can be individually attributed and assigned to individuals. The template tasks should contain a completed checklist.
These plans are under a main page with summaries and dashboards for all the plans below.

Dear Microsoft Team
When I export plan into Excel and there were late tasks but completed , it appears In the Excel(Late column) false, although they should be true in that case i have to insert new column to identify the late delivery tasks from on-time tasks

So please fix this feature
Thanks

Currently, there's no way for end-users to obtain an overview of all public plans, as -contrary to what the name implies- the "All Plans" section is in fact the "All MY Plans" section.

If you know the name, you can find the related Group, but there's no way to go from the Group to the Plan.

It would be nice to be able to sort tasks alphabetically by title.

Create multiple checklists (for different people or different sections of a task)

Should be able to track effort and impact of each task to help with prioritization.

Ability to create more than one checklist in the same task and ability to delegate a checklist item to a user, individually, with delivery date and reminder/notification (only those users present in the task).

It would be nice to be able to tag or @ people in the comments section so they get a notification.

Would like to be able to move or copy a bucket to a different plan.

The ability to archive completed plans/project is important because of all the important conversations and history recorded with the project. If someone wanted to come back to a completed project and review comments and decisions that were made, the archive is essential.

The option to only delete a plan means you loose everything and all the benefit of tracking and collaborating with a team to begin with. Why do all of this if you will just loose it all.

As of now, if a user is assigned to a task, they are automatically added as members of an entire plan, and all subordinate buckets.

In events where buckets or tasks have some independence of one another, it would be great if members assigned to a given task were not automatically able to access all other tasks in the same bucket or all other buckets in the same plan.

Planner is a great collaborative tool but also very useful to use just on an individual basis for own tasks and responsibilities. However, if you create any new plan, it automatically creates a new email address for that plan that is immediately visible in the organisations address book/contact list in Outlook. It would be useful if you had the option just to use planner without it doing this.

It is very annoying to have the session expired box continually pop up - even when actively using planner and creating/updaing tasks etc.

If this is to do with the auto refresh, can we at least have an option to turn the auto refresh off and manually sync.

Allow more control over the Progress setting on a task.

For each plan / board the user should be able to manage the Progress stages allowing more control when tracking the state of a task.

I'd love to be able to print the plan itself, preferably in a timeline manner for reference and reporting.

Planner I want to see calendars and tasks in Outlook