D W M Accidently Deleted From Times

I accidentally deleted several timeframes in the charts menu: D,W,M and I can't get them back.  I tried entering D or W in the Enter Symbol or TF box, but it always adds a symbol "D", not a D to the timeframe list.  I've looked at the help but cannot see how to get the timeframes back.  What do I need to do?
With a chart open, click on the Times button (round red clock) and on this form click Edit and then click the Save buttons.  This will repost the D, W, and M time frames back to the chart panel's timeframe lists.
Sincerely, Howard Arrington