There is only one way - 1) higher management must acknowledge that this is needed, 2) higher management must approve time allocation for these activities (as opposed to stuffing all new iterations 100% with new feature development). Then they push it lower and lower, down to the engineers. No way it will happen in reverse, when engineers decide they want this it usually end with a several disconnected resources, often using different tools and each maintained by 1-3 persons effectively for themselves, because nobody reads what they wrote. Also everyone need to accept that this activity does not have "end", and that it may need multiple reworks along the way. Basically this must be a thing that everyone just does, all the time, however they can.
