Sounds like you are on the right track. Yes, you will need to install a driver that works for the blinds.:
To install the driver, go to the “Driver Code” section of the Hubitat app, click on “New Driver”, then you can click on the “Import” button which will allow you to enter the driver code’s path. In this case, you will want to past the following:
Once this is done, click on “Save”.
Here is the Hubitat documentation on doing this:
https://docs.hubitat.com/index.php?title=How_to_Install_Custom_Drivers
Once the driver has been saved, you can go to the device page and select the new driver. It will be an the bottom of the drop down list under the “Device Information” section’s “Type:” drop down box.
https://docs.hubitat.com/index.php?title=Device_Detail
Does this give you the information you need? It may sound like a lot, but don’t hesitate to ask if you need more detailed directions!