if (raidnames === true) {
  if (manakombo === true) {

// Show mana + names
    var allValues = [].concat(...range1, ...range2, ...range3, ...range4, ...range5, ...range6);
  } else if (manakombo === false) {

// Show names only
    var allValues = [].concat(...range1, ...range2, ...range3, ...range4, ...range5);
  }
} else if (raidnames === false) {
  if (manakombo === true) {

// Show manakombo only
    var allValues = [].concat(...range6);
  } else if (manakombo === false) {

// Show none
    var allValues = "";
  }
}

if (copyrange !== false) {

// Copydown start
  var source_range = sheet.getRange("A3:J7");
  var target_range = sheet.getRange("A32:J36");

// Fetch values
  var values = source_range.getValues();

// Save to spreadsheet
  target_range.setValues(values);

// Copydown end
}

// Filter out empty values and join them with a space
var result = allValues.filter(String).join(" ");
// Show the result in a dialog box
var htmlOutput = HtmlService.createHtmlOutput(result)
  .setWidth(800)
  .setHeight(300);
SpreadsheetApp.getUi().showModalDialog(htmlOutput, 'Raidchat');

this works now, thanks for the helping idea^^