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Changing custom columns type?
Is there any way to change custom columns type without loosing its content? (for example, if I have an "integer" column, and I want to change it to "number with decimals").
If the answer is not (I think so), then I suppose the way is to create a new custom column and to copy old values from the other. In this case, is there any way to copy the full column (for all the library) at a time?
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