How can I control the layout of a Trendline?

[Christian_Lauritzen]

The automatic trendlines, e.g. regression lines, are sometimes useful and very convenient. Just check the box. However, I have not been able to figure out how to control their layout, e.g. color or thickness. Anyone?

[MK_QSL]

Are you talking about Reference Lines?

If yes,

we can go to Presentation

Edit on particular ref line

and there are settings for color, thickness etc..

[Christian_Lauritzen]

Thanks Manish. Sorry. I used the wrong term. The right term is Trendlines. Any ideas?