To align diagram Elements, select the elements and click the respective button in the alignment toolbar :

Note that dockers of Connection elements are not influenced by aligning and you might need to remove them.

To change the Element layering, select the element or a group of element and click the respective button in the toolbar:

Note that Connection Elements are not influenced by layering and remain always visible.

When moving an Element with incoming or outgoing Connection elements, dockers are automatically added to accommodate the appropriate Connection shape. To create a docker manually, click and pull the respective point of the Connection object. To delete a docker, click the Delete a Docker button in the toolbar and then click the respective Docker. Once you delete dockers of a Connection object, no more dockers will be created automatically.

To resize Elements on the canvas, select the element, and click and pull the blue arrow displayed in the upper left or lower right corner of the element.

To make the size of multiple elements identical, select the Elements and then click the icon in the toolbar and then click on Alignment Same Size: all Elements will be resized to the size of the largest selected Element.

Note that only Activity Elements can be resized.

Group Elements behave on the canvas as one item.

To create an element group, select the respective items on the canvas and click the Groups all selected shapes button in the toolbar. To ungroup such elements, select the group and click the Delete the group of all selected elements button.

Locking Elements of a Process model prevents their editing: locked Elements are visualized as locked and cannot be moved or edited unless unlocked.

To lock Elements, select the elements and click the Lock Elements button in the toolbar. To unlock such Element, select them and click the Unlock Elements button in the toolbar.

Color schemes define the color used for individual Process Elements in its diagram.

Color schemes are stored in the themes.json file, which is located in the global directory of each repository.

To apply a new color scheme or any other defined scheme, in the Process Designer, click the Color Scheme button in the toolbar and select the respective color scheme from the drop-down menu.

Local history keeps track of any changes, you apply to your Process model so as to allow you to restore any previous status of the Process model. By default, this feature is turned off.

To turn on local history recording, click the Local History button and select Enable Local History entry. From this menu, you can also display the local history records and apply the respective status to the Process as well as disable the feature or clear the current local history log.

To change the size of the canvas, click the respective yellow arrow on the canvas edge.

Process validation can be set up to be continuous or to be only immediate.

To validate your Process model continuously, click the Validate ( ) button in the toolbar of the Process Designer with the Process and click Start Validating. If validation errors have been detected, the elements with errors are highlighted in orange. Click on the invalid element on the canvas to display a dialog with the summary of its validation errors. To disable continuous validation, click the Validate ( ) button in the toolbar of the Process Designer with the Process and click Stop Validating.

Also note that errors on the element properties are visualized in further details in the Properties view of the respective element.

If you want to display the validation errors and not to keep the validation feature activated, click the Validate ( ) button in the toolbar of the Process Designer with the Process and click View all issues.

Additionally after you save your Process, any validation errors are also displayed in the Problems view.