I have tried using the "bulk" approach as shown in your video but have found that most of the jetways using this method do not line up in a believable position to the terminals. Hence I have to manually edit the jetways position using the Jetway Editor.
The only jetway model that would likely match existing parking positions are the two variations ( sold or glass ) named "standard Jetway replacement", because these have been designed to have exactly the same dimensions of the default model and they have an embedded connecting bridge that has the same size as the default one.
But this, of course, is only valid for DEFAULT sceneries, or 3rd party sceneries that use the default jetway model. If you are trying to customize a 3rd party airport that use a custom jetway model, it's highly unlikely you'll find a single model that would match the scenery in bulk, you will always have to check all gates one by one, and adjust the model type, position and rotation and possibly the associated bridge too.
The change in bulk will only give you some starting situation, but it's impossible to create a customization for a 3rd party scenery without any manual adjustment. Especially considering the most important aspect of a successful customization is adapting the STOP position, which makes all the difference.