When he felt that there were talented, hard-working artists in Taiwan, Chang would invite them to Japan. By day, he would arrange for them to visit art museums. By night he would tutor them in etiquette, personal presence, and conversation, and introduce them to members of the Japanese artistic world. With his keen connoisseurial eye, he would identify their artistic blind spots or suggest areas of needed improvement.
國內年輕一輩的書畫家中，張允中認為有天份也肯努力的，就會邀請他們到日本，白天安排他們參觀美術館，晚上則親自指導藝術家的禮節、風度、談吐，介紹他們和日本藝術圈人士認識交往，並以其鑑賞家的敏銳觀察，點出這些書畫家創作上的盲點與瓶頸。