If you are developing a Hyper-V Virtual Machine outside of Skillable Studio, you can upload the files to Studio, so that you can use them in a lab environment.
Once you are logged in:
Open Site Administration.
On the Storage tile, click Manage Storage. This opens up the Storage page for your organization.
Double-click on a storage folder and click Upload File.
In the Upload File dialog, click Add.
In the Open dialog navigate to and select the file, then click Open. This brings you back to the Upload File dialog.
Select the file and click Upload**.
The time it takes to upload a file is dependent on the file size and connection speed.
These directions apply to both VHD(x) files and ISO files.