Within Teamwork Projects you can use shortcuts when creating new filters across your site.
In any area where you can enter a search term such as the keyword option, you can use these shortcuts.
Project
To pick a project quickly you can enter " / " which will allow you to select a project and it will then appear in the project area of the filter.

Priority
If you wish to quickly set the priority of a filter related to tasks you can enter " ! " in the keyword search area to set this. It will then appear under the priority area of the filter.

Date Range
If you would like to set a particular date range you can use " [ " and select from the dropdown. The selected range will then appear in the date area where you can enter the custom date or within days amount.

Tags
You can quickly select tags by entering " # " into the keyword area and you can apply the tag from the list that populates. The tag will then appear in the tags area of the filter right pane.

Note: The tags shortcut is not available whilst filtering task areas of your site.
Users
You can use the " @ " symbol to quickly choose specific users who you wish to view projects items for.

For more information, see: Filtering