How to add arrows to features?

[yeban]

Like in https://www.biodalliance.org/ss/cview1.png, or as on biodalliance.org.

[dasmoth]

What kind of features are you working with here?

Do you mean the arrows that occur as part of the grouping lines, or the '>' and '<' characters which get prepended to feature labels.

In both cases, these are currently only available on 'grouped' features (typically gene structures), although I'd be open to adding some stylesheet option for finer grained control of when they're used, if there's demand.

[yeban]

Sorry I wasn't clear - I was talking about the arrows that occur as part of the grouping lines. We are using mRNA features with exons and CDS and I think they are grouped. Here's the XML sent out by our DAS server - https://gist.github.com/yeban/32fd7a0ce645037ab5c6. Please could you take a look and advise what's wrong?

/cc @Filip-Ter