Within Teamwork, you can filter milestones that have been added to your project.

To access filters, click the filters button in the top right of the project's Milestones tab.

Once this is selected the filtering options will appear in a panel on the right.
Keyword
You can use this to filter your results down to the search term entered.

Assigned To
Filter to tasks assigned to specific users. Once you have at least one user selected, you will see additional options to include milestones for the user's companies and teams.

When you click Show more options, you can also filter the milestones to ones specifically assigned to individual companies or teams.

Date
When setting the date, you can choose to see results for when a milestone is due using the set time frames found within the dropdown.

You can also choose to set a custom date range or a within_days option where you can set a day interval to filter between.

Tags
You can choose to filter tasks by the tags associated with them. You can apply more than one tag when filtering results.

You can filter any results that include one or more matching tags. Alternatively, you can select the Match all tags option which will then only return results which include all selected tags.

Followers
Filter based on which user or users are following a particular milestone.

Created By
Filter based on milestones created by particular users.

You also have the option here to include items from deleted users. When this is selected, deleted users will then appear in the Created By dropdown
Options
In the milestones area, you can also choose to show private milestones, show attached task lists, or show the percentage completed for the milestone.

Reordering filters
You can also drag and drop the various filter options to change the layout.

Saving filters
You can choose to save a filter you have created for use at a later time. Once saved, it will appear in the Saved Filters tab of the filters pane.
Clicking a saved filter will highlight it and apply it to the milestones area.

When a filter is active, you can also change quickly between saved filters by clicking the filter name at the top of the page.

Note: Saved filters are available on paid Teamwork subscriptions.
For more information, see: Filtering