I'm trying to created a referance plane on the end point of a line, however when the point is to close to the part origin point@origin is selected instead of the endpoint.

Here is the code I'm using:

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    'CREATE PLANE AT START PNT

    blnstatus = objPart.Extension.SelectByID2("", "EXTSKETCHPOINT", FirstPntX, FirstPntY, FirstPntZ, True, 0, Nothing, 0)

    blnstatus = objPart.Extension.SelectByID2("", "EXTSKETCHSEGMENT", FirstPntX, FirstPntY, FirstPntZ, True, 1, Nothing, 0)

    Dim swRefPlane As SldWorks.RefPlane

    Set swRefPlane = objPart.FeatureManager.InsertRefPlane(4, 0, 2, 0, 0, 0)

    objPart.ClearSelection2 True

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Also could anyone explain how the Append, Mark, Callout, SelectOption, and Value do for the SelectByID2 Method?