The following steps may break folder structure of your existing Unreal project. Recommend backup the project first.
1. In this case, I download SunTemple project from learning page of EpicGames Launcher.
2. Open SunTemple project by UE4.18 editor.
At first, UE editor would auto-load default map from its content browser.
It's better to make a new empty level to clear the memory of default map.
3. Add a new folder named Imported_Content which is unique in Content folder(/Game), then add a new folder named SunTemple ( based your project name ) in Imported_Content folder.
4. Select initial folders ( Assets, Blueprints & Maps folders ), then drag them to the folder SunTemple.
by selecting Move Here.
5. It would take a while to move and update the path for all unreal assets.
6. Right-click Content folder to execute Fix Up Redirectors in Folder. ( It's an important step. )
It would also take a while to redirect links for assets.
7. Select initial folders ( Assets, Blueprints & Maps folders ) to delete them. Just ignore the warning of SunTemple_BuiltData to delete it, then load SunTemple level to check.
8. All assets and folders are moved to ...\Content\Imported_Content\SunTemple .
The standard folder structure is ready to use for PiSatge shot.