Yes, it is possible. You can use the add-on domain function in your control panel. However, we do not recommend this as the performance of your website will be affected. This is due to the add-on domain sharing the same resources (eg. disk space, bandwidth, etc.) as your main domain.
If you wish to host multiple domains, we advise you to take up our Reseller hosting plan.
Linux Reseller Hosting – https://www.apc.sg/linux-reseller-hosting
Windows Reseller Hosting – https://www.apc.sg/windows-reseller-hosting