I just tryed the (/autobuy all on) command on my Teknikal. chracter.
It seemed to work I have 50 of each though why not 70 that would be a full load.
The message it gave me left me very puzzled it says I bought 4,294,967,276 countermeasures :unsure:
I've screenshotted it and posted it below.
//edit Ah I see why 50 now I reread the thread sorry and now I suspect my strange message was probably to do with me having more than 50 countermeasures to start with.