Too little space for table/program fields. Fields not placed

What causes this issue?

The system has arranged the fields you want to copy to the screen in
the form of a rectangle where each field name occupies one line. Fields
with the same name appear on the same line, with the field text (key
word) followed by the input/output field (template). These pairs are
then arranged one below the other.
The cursor position determines the top left corner of the rectangle on
the screen.
There is not enough space in this position to accommodate the whole
rectangle, i.e. all the fields to be copied.

System Response

No fields were copied.

How to fix this error?

Try to find enough free space on another part of the screen and repeat
the function.
You can also return to the selection list by choosing <LS>Dict./program
fields</> and either reduce the number of fields to be copied or the
amount of space thy require.

Error message extract from SAP system. Copyright SAP SE.