You can add a custom button to your event with a link to anything. The button can be used in multiple ways for example:
Direct visitors to an external website for more information
Link to where visitors can buy tickets to the event
Link to another community in CrowdWorks, e.g. collect company applications or registrations
You can choose the text on the button from the following options:
Learn more
Get tickets
Sign up
Register
Register to join
Apply here
For the link you can have anything you want.
How to add a custom button:
Create an event
On the right-hand side of the event pop-up, you will find a section called "Call to action"
Choose the text for the button
Paste your URL to the text field
Note: you can always remove the button by clicking the "Remove button" link