breakApart() works fine, but I'd like to fill the empty cells with merged cell's data.
var sheet = SpreadsheetApp.getActiveSheet();
var sheetRange = sheet.getRange(1, 1, sheet.getMaxRows(), sheet.getMaxColumns());
sheetRange.breakApart();
I got the value I need, but how can I get the cells to fill?
var value = (cell.isPartOfMerge() ? cell.getMergedRanges()[0].getCell(1,1) : cell).getValue();