This is an idea on the jp side I'm pretty sure the title says it all, but here is the dev response for this
こんばんは。
Good evening,
アクションやコンボの練習を行えるような、様々なレベルのダミー人形については、
皆さんからの要望が多いようでしたら検討を行いたいと思います。
Regarding a dummy doll with different levels to test/practice actions or combos; if there are many requests for this one we would like to look into it.
このような機能も一緒に検討してほしいなどあれば、
引き続きフィードバックをお願いします。
If you have other features you would like us to look into along with this please leave a feedback.
-Credit goes to Reinheart for trans.
Soo, I would like to support this because it would be a fun idea ^.^ also more people in favor, looks like they will implement it.