[Therion] Aven colour by date and loop error

I have been envious of Avens ability to colour survey centrelines, not only by elevation, but also by date and loop closure error. Particularly because Therion generated 3d files don't seem to include this information. Is this a feature that could be added to Therion's export model to format .3d without too much effort? Also, I presume that colour by date in Aven refers to 'survey date'. Is colour by 'exploration date' something that has been considered? In a serendipitous world Olly would add this extra bit to Aven (PS I like the new zoom to box feature in 1.2.14 Olly) and then Martin/Stacho would support these features in the export models. ;-) Bruce