[Connect Edition Update 15 C#], Create new Element Template

Hi,

I try to create (or find existing)  Element Templates and attach them to elements. I can make most of the functionality work, but i can not figure out how to customize a newly created Element Template.It is simple and straightforward to insert a new Template, but customizing layer name, color, linestyle, cell name etc. is not so straightforward.

Below is a part of my code that handles the Element Templates, and I hope someone can help me fill in the blanks.

//  Bentley namespaces
using BDPN = Bentley.DgnPlatformNET;
using BM = Bentley.MstnPlatformNET;
using ECS = Bentley.ECObjects.Schema;
using ECI = Bentley.ECObjects.Instance;


BDPN.XDataTree.XDataTreeNode ElTemplate = BM.XDataTree.ElementTemplateMgr.FindTemplateByPath("Digitizer\\Ejerlejlighed");
if (ElTemplate is null)
{
	BDPN.XDataTree.XDataTreeNode DigNode = BM.XDataTree.ElementTemplateMgr.FindTemplateByPath("Digitizer");
	if (DigNode is null)
	{
		DigNode = BM.XDataTree.ElementTemplateMgr.InsertNewTemplateNode("Digitizer", true, 0, 0, true, BDPN.XDataTree.ECIXDataTreeOwner.CreateFromDgnFile(DgnFile));
	}

	ElTemplate = BM.XDataTree.ElementTemplateMgr.InsertNewTemplateNode("Ejerlejlighed", true, DigNode.ElementId, DigNode.ChildNodes.Count, false, BDPN.XDataTree.ECIXDataTreeOwner.CreateFromDgnFile(DgnFile));

	ECI.IECInstance Ustn_ElementParams = ElTemplate.GetECInstanceByClassName("Ustn_ElementParams");
	foreach (ECS.IECProperty prop in Ustn_ElementParams.ClassDefinition.Properties(true))
	{
		ECI.IECPropertyValue val = Ustn_ElementParams.FindPropertyValue(prop.Name, true, false, false);

		// Here I would like to set Levelname, Color, Line Weight an Style, Cellname, etc.
	}
}

// Set Element Template active
BM.XDataTree.ElementTemplateMgr.ActivateElementTemplate(ElTemplate, false, false);

// Apply Element Template to elements
Boolean test = BM.XDataTree.ElementTemplateMgr.ApplyTemplateDefaultsToElement(ref ele, ElTemplate, true);

Regards, Peter