Option-Click your new folder location and select Make Default.
Games can get pretty big so you might want to install them on a separate disk drive. If you play games or run VR applications on your Mac you're likely to have Steam installed. Now you simply ensure that you always import and make projects in that newly names Library.
Final Cut Proįinal Cut's process is a little bit different since being a Pro application, access to various Libraries is a must regardless of where they live but here is how to add a new one on. You can always re-open the old one if needs be. Now all of your photos and videos will be imported by default into the new Library. Here is an example of changing your default location with Photos. You can save a lot of disk space by placing each of these on a separate disk drive. Upon initial installation, these your home directory exists on the main install/boot drive which in my case is my small SSD.
Their default locations live in your home directory in ~/Library/Pictures or ~/Library/Movies. Photos, iMovie and Final Cut Pro store its data in a "Library" which is effectively an monolithic file that grows with the more data put into it.
The easiest way to start using your newly attached (whether internal or external) disk drive is by changing the default storage location for specific applications. How to change default storage locations on your Mac Applications or speed intensive data on faster SSD drives, and non-speed sensitive data or very large data sets where cost is more important than speed on larger and cheaper HDDs. The point is to know what you'll be storing on your hard drive first before buying and setting them up for use. Or you might need faster more direct connections for running large applications or data sets with a SSD connected directly via SATA or thunderbolt if you only have an external connection. You don't necessarily need blazing fast speed when storing Pages documents or Numbers spreadsheets onto your drive, so you can opt for a "slower" and lower cost HDD, like those that Western Digital offers. Depending on what you'll be storing on your drive, you can decide which type of disk drive will be best for you.