The goal of this article is to help you set the hard drive you need for your virtual machine.
For this, you will need to create an AMI with the necessary volume, it can be configured as shown in this next article here. It's important to understand the image you are setting so your events can hold the resources, and avoid machine delays.
If you want to add more disk space to the lab, then you'll need to create an AMI and choose how much space to give it. Currently, there's no way to choose disk space without using a custom AMI.