Upon getting a copy of Vegas Movie Studio 14 I realized that I could not make custom templates. In order for you to create a custom template you either need Movie Studio Platinum 14 or Movie Studio Pro 14. But this meant for me that if I decided to make a video using a resolution for 3840x2160 would not be possible. I had to look around and I found some interesting information. You can use custom templates from older versions of Vegas Movie Studio Platinum or Vegas Pro.
This is how it can be done:
First your going to want to create a custom template but do make sure there is a video file in Vegas before doing so and for me i'm using Vega Movie Studio Platinum 10 which I do own. You won't need to do anything with the video but in order to access the render options you need a file in place.
Then your going to want to save the file make sure its a unique name something you can remember. Click that little floppy and your ready to go on to your next step. If you see an error don't worry about it, it could be that your using an older version of Vegas which doesn't support resolutions higher then 1080p. You can still however use the template with a newer version that does support higher resolutions.
Now its time to locate your Vegas Custom Template folder which will be located in C:\users\YOURUSERNAME\AppData\Roaming\Sony\Render Templates\avc-mc. Now depending on what version you used and what codec you used it might be in another folder in C:\users\YOURUSERNAME\AppData\Roaming\Sony\Render Templates. For me I saved mine in avc-mc so the file will be in that folder. Leave the Window to the left or just copy the file you created which for me is Vegas Movie Studio 14 3840x2160.
Alright next were going to need find the Vegas Custom Template folder for Vegas Movie Studio 14 which should be located at C:\users\YOURUSERNAME\appdata\vegas\render templates. Now were going to want to copy over the file from C:\users\YOURUSERNAME\AppData\Roaming\Sony\Render Templates\avc-mc.
Now open up Vegas Movie Studio 14 and check to see if your custom template is in place if it is it should look like this: