On 1 Dec 2021 during Master Chen Zhonghua’s Chinese Instructor 3 class we were asked to record a video of the first 13 moves of Yilu initiating all moves from the dantian and to ignore the upper body.
Reference: https://www.zhenbudong.cn/archives/148707
A training method we were instructed to emphasise this was to cross your arms and only to use the dantian and legs to complete the form.