You can set up multiple scans per day using the "Recurring every X minutes/hours" schedule option. In your specific case you could for instance scan based on the report Servers: All Servers, as seen in the screenshot below. Do note that this scan will only work to rescan already existing assets in your database, as it will rescan only assets that are in the report output. Servers will be automatically added to the report output though if they're scanned for the first time via another scanning method such as IP Range Scanning.
You can set up multiple scans per day using the "Recurring every X minutes/hours" schedule option. In your specific case you could for instance scan based on the report Servers: All Servers, as seen in the screenshot below. Do note that this scan will only work to rescan already existing assets in your database, as it will rescan only assets that are in the report output. Servers will be automatically added to the report output though if they're scanned for the first time via another scanning method such as IP Range Scanning.