How can I customise the link to open the form?

When a form is opened via the interface, such as under My forms or in the Designer itself, the system uses the provider link (e.g. https://localhost:8080/formcylce/form/provide/342) by default. The form ID is permanently set in the link and cannot be customised. The form ID is automatically assigned by the system when the form is created.

However, it is possible to assign your own alias in the Publish dialogue under e.g. Direct link and enables the generation of meaningful links. You can find a further description of this in the help article on publishing.