Currently it is not possible to use filament profiles with different machines. As long as a user just has printeres of one machine type he will not see the problem. But with the new H2D there will be more and more users which have different machines in use. Consider having an A1, X1C and an H2D is use. Now If you buy a roll of filament, you want to use this roll on all of your machines without setting up a whole new profile for each machine. Currently this is not possible!
Basically:
There are a lot of information for a roll of filament which are not machine specific, like brand, color, price, density, remarks and so on.
Then there are information which might be machine specific. Like bed temperature and if you can use it on this printer at all (think of chamber temperature).
And then there are informations which are nozzle specific on a specific machine.
So I would propose to have a management for filaments which keeps track of all your materials and rolls you have. Within each of these filaments you have a section for each printer and in there another section for each nozzle diameter.
All the informations we now have in the filament profiles would then be neatly sorted in these subsections and could be easily maintained and switched within different machines. Every data for a specific filament material would then be in just one big file and not scattered over different files on different locations.
Now if you buy a new roll of filament, you would just add it to your inventory. Then you would set up the infos for the printer you want use it on and calibrate it. If you then decide to use it on one of your other printers, you would then have to only add a new printer profile to this material and tweak some parameters. You would be able to see on which printers you have calibrated the materials and could switch jobs more easily between your different printers.
I think this would make filament profile handling much more easy and the use of different printers much more convenient.