Is there a special name for a congregant who follows the Torah text in the actual scroll with a yad at the bimah while someone stands next to him/her and chants the text from a chumash (when there is no trained Torah reader available who can chant directly from the Torah scroll). That congregant doesn't need to be an oleh and get an aliyah (although they can), their job is to follow the text carefully with a yad while another congregant chants it out loud from a chumash. I'm just wondering if there is a special term describing this job.
I saw this situation at a service where there was a minyan but no one knew how to chant the Torah from the scroll. So one person used a chumash instead to chant the text out loud but another congregant quietly followed the text with a yad in the actual scroll. They tried to make up for the fact that no one was able to chant it from the scroll - the text was sung out loud from the chumash and at the same time quietly traced with a yad in the Torah scroll.