Formatting legend markers

Formatting legend markers

I would like to represent legend items' markers as lines for my Lineseries
and not as boxes(by default) . I have managed it through setting
markerWidth and markerHeight in a Legend tag. However, I have not only
lineseries, but also plot series in my chart, which has diamond form
marker. So, whenever I squeeze the box to a form of line in my legend, my
plot series' marker is getting ugly.So, my questions:
1.Is there any way to control legend items separatly without creating a
legend manually, item by item?
if I add item by item, how can I get the same style for my marker as
related series have? (e.g. same shape and color as item renderer)