Export multiple terrains to dtm's in one action

Is it possible to export multiple terrain's (in one action) to Inroads DTM files?

I've got a model with 50 terrains. A lot of work, because the only way to do this I know, is to do this by one terrain at a time. 

If this is not possible, could this be a change request?

Thanks in advance,

Louis

P.s. Something similar is if I have to add a lot of linear Template's / Corridors to lines. It would be very welcome if this could be done to a selection of lines (and not one by one).