With Stage 2 reopenings this week at the Regional YMCA of Western Connecticut, the organization is looking ahead to stage 3, tentatively set for mid-September.  Change include to Greenknoll Fitness open Mondays and Wednesdays from noon to 3pm without a reservation needed.  There will be a modified Water Aerobics schedule and programming.  The indoor track, shower facilities and group swim lessons will reopen.  There were some concerns raised in a survey of Y members.  One was about the reservation system time slots not being listed in chronological order and that there is no online cancellation option.  The software company is looking into changes.