The Question and Set Up
You are coming from the southwest and have been cleared to SWL as the transition. Since it's a NoPT transition, if the 480 does the same thing as other navigators, the HILO at CIRAN will not be included when you load the approach. If that's not the case - if the hold gets loaded anyway - no need to go further.
If that is the case, here's the scenario. While inbound from SWL to CIRAN, you get "hold as published at CIRAN" from ATC.
In the other Garmins from the GNS 430/530 onward and in the Avidyne IFD, you would just reload the approach and choose CIRAN as the transition. The hold at CIRAN will be there.
Part 2, if that happens, will the flight plan still show you direct CIRAN or do you have to tell it again?
The Answer
With the Garmin 480 there are two ways to address the issue. The first is reload the approach selecting CIRAN as the transition and that will plot the PT.
The second way is to select DIRECT then HOLD and enter the following info. Left or Right turns, Inbound heading, and leg length in minutes or nautical miles. Either choice will address the issue.
What's the difference between nautical mile and a statute mile. Good question. A nautical mile is slightly longer than a statute mile and based on Earth's latitude, while a statute mile is a land-measured unit.