Referring to Trendline by name

[SedM]

I create a trendline and give it the name of "Trend_1"
Later I want to delete/modify this line by referring to it by name (not index number which I think can change).
Can I do this?
Des

[austenr]

Perhaps something like this:

[VBA] Worksheets("sheet1").ChartObjects(1).Chart.SeriesCollection(1) _
.Trendlines.delete Type:=xlLinear, Name:="Trendline1" [/VBA]