Handoff Transcript changes

Currently we have the last 10 message conversation that the user and onebot have been having, is this possible to change or maybe even be configurable to more messages or less if a user wants. This transcript also only shows what OneBot has said if it has been said through a say command and since the majority of communications with OneBot now use cards instead, it is hard to get context through this without being able to see cards in the transcript.