Column Properties
Fields in the Event list can be configured in the Format event list panel (see Figure 62, “Format Event List”). You can set the following column properties:
- Type options are: - is the name of the field as it comes from the events. 
- is used with fields that contain URLs to display clickable links. 
- creates arbitrary links based on the contents of an event. Instead of just providing a field name, and using its content as the link, you write link templates, and use field interpolation to fill out the template. - To use field interpolation, write two sets of curly braces (one nested in the other), and write fields - ["nameOfField"]inside, like this:- https://internal-tool/customers/{{fields["customerId"]}}. This creates a unique link for every value of- customerId.- The same mechanism can also be used to generate the text for the link, if you would like a different text than the raw URL to show as the link.  - Figure 70. Adding a New Custom Link Column 
- is used to format all fields in an event as a list of key-value pairs. Enable the checkbox to organize data that share a prefix into a tree-structure. A prefix is any string followed by a dot in the field name, as - actorin actor.ip and actor.organizationId, for instance. - Figure 71. Group fields by prefix option - In the following example, all fields prefixed with - actor.and- user.are grouped in a tree that can be expanded or collapsed. - Figure 72. Field List grouped by prefix 
 
- Header is the custom field name you want to see displayed in the Event list. 
- checkbox controls that the link is opened in new browser tab. 
- Show as controls whether the link should be displayed as a link or a button.