Ah now thats more like it, thanks.
For my 2nd custom component I need a bidir data bus with cs1,cs2,rd,clk to access a couple of A/Ds. A simple avalon slave template does not give me an option for bidir data, so I add a tristate slave template, but that does not give me a clk. Mixing interfaces signals gives me the signal types I want, but then I see on the interfaces tab I have two timing dialogs, one for the standard slave and one for the tristate slave. This does not seem right.
I was getting the idea that 'interface' was just like 'name' and had no special meaning, but it looks like it does matter. What's the story?