I discovered that the Pattern Properties dialog allows characters other than numbers in the Rows input field. I then attempted to expand a pattern by using a multiplication operator. (I used 31 × 64.) However, I was warned that data would be lost. I am guessing that the interpretation was 31 and that the × 64 was ignored. That gave me an idea. Allow mathematical operators in that dialog so that a specific number of rows can be quickly obtained if not readily known (such as my using the expression 31 × 64, as I do not know that value off the top of my head). The function would be similar to the / 2 and * 2 buttons, except allowing for “arbitrary” values.