I don't believe it is possible to show the units for each value - only for the totals as you have discovered.
I often put the units in the text for the column header or as you have suggested you could use a column of custom text.
You can use superscript text if you copy and paste it from your floor plan text - or any text editor - even this post.
i.e. type 'm²' in the floor plan (or text editor) and then copy and paste it to the schedule.
Once in the schedule you can copy and paste it from there.
Barry.
One of the forum moderators.
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