Special List Path

List path from a method

Player.cs

//Testing custom property
public class Player : Monobehaviour
{
    //The list
    List<HelmetData> HelmetDataList; 
    
    //The method
    public List<HelmetData> GetMyList(){
        return HelmetDataList;
    }
    
    //Select from the return of the method GetMyList()
    [Dropdown("GetMyList()", "HelmetName")]
    public HelmetData Helmet;
    
}

HelmetData.cs

//Testing instance variable
public class HelmetData : Monobehaviour
{
    public string HelmetName
    public string HelmetID
    public string HelmetMaterialName
}

List path from a method with string arguments

Player.cs

//Testing custom property
public class Player : Monobehaviour
{
    //The lists with different rareness
    List<HelmetData> CommonHelmetDataList; 
    List<HelmetData> RareHelmetDataList; 
    List<HelmetData> SuperHelmetDataList; 
    
    //The method that return HelmetData List
    public List<HelmetData> GetMyList(string rareness){
        switch(DataListName)
        {
            case "Common":
                return CommonHelmetDataList;
            case "Rare":
                return RareHelmetDataList;
            case "Super":
                return SuperHelmetDataList;
            default:
                return CommonHelmetDataList;
        }
    }
    
    //Select from common helmet list
    [Dropdown("GetMyList( \"Common\" )", "HelmetName")]// use \" instead of "
    public HelmetData Helmet1;
    
    //Select from Rare helmet list
    [Dropdown("GetMyList( \"Rare\" )", "HelmetName")]// use \" instead of "
    public HelmetData Helmet2;
    
    //Select from Super helmet list
    [Dropdown("GetMyList( \"Super\" )", "HelmetName")]// use \" instead of "
    public HelmetData Helmet3;
    
}

HelmetData.cs

//Testing instance variable
public class HelmetData : Monobehaviour
{
    public string HelmetName
    public string HelmetID
    public string HelmetMaterialName
}

List path from static class

Player.cs

//Testing custom property
public class Player : Monobehaviour
    //Select from the the static list of HelmetDatabase class
    [Dropdown("HelmetDatabase.HelmetDataList", "HelmetName")]
    public HelmetData Helmet;
    
}

HelmetDatabase.cs

public class HelmetDatabase : Monobehaviour
{
    public static List<HelmetData> HelmetDataList;
}

HelmetData.cs

//Testing instance variable
public class HelmetData : Monobehaviour
{
    public string HelmetName
    public string HelmetID
    public string HelmetMaterialName
}