To rename your stream, please take the following steps:

Step 1. Log into your Centova Panel, and click on "Settings"

Step 2. On the right hand side, click on "Auto DJ" tab.

Step 3. Select Encoder Tab

Step 4. In the box beside "Stream Name: " enter in the name of the Stream you wish. (Practice Sessions)

Step 5. Click on "Update" button at the bottom.

Step 6. Stop and restart your stream.

(I have attached 3 images as well for you that you can look off of. Please do not rename the mount point itself, keep it at /stream )
Please follow the images in order.