Butterfly specialist Beeley was initially nominated by Scotland Swimming to make his major championships debut in Birmingham after impressing at the British Championships.
However, when Team Scotland named their team last month he was not included on their squad list.
But now he, along with fellow swimmer Gregor Swinney and diver Danny Mabbott have been named as additions to the aquatics team.
Scottish Swimming director of aquatics Ally Whike said: “We are delighted that Gregor, Tom and Danny have been added to the aquatics team for Birmingham 2022.
“All three have worked extremely hard to gain their selection, will contribute positively to the team and we look forward to seeing them compete and thrive within the Commonwealth Games competition environment.”
Beeley, who smashed his 200m butterfly PB at the British Championships earlier this season, will strengthen Team Scotland’s relay options in Birmingham.
Meanwhile, Mount Kelly swimmers Hollie Widdows, Erin Little, Matthew Ward and Calvin Fry all returned home with relay medals from the European Junior Championships in Romania.
Ward was part of the Great Britain men’s 4x100m medley relay squad that won gold on the final day of the championships.
Ward swam the morning’s heats before GB took gold in the evening ahead of Ukraine and Poland.
Scotland swimmer Ward also reached the individual finals of the men’s 50m and 100m backstroke events, finishing sixth in both.
In the 50m final he clocked 25.42 seconds and was only 0.06 of a second off bronze. In the 100m final, he swam 55.18 seconds, having clocked 55.20 in the semi-final and 55.31 in the heats. He also reached the semi-finals of the 200m backstroke competition.
Little and Widdows had busy championships and both returned with two relay medals.
They helped GB to silver in the mixed medley relay, finishing just behind France in 3:51.98. They also featured in GB’s women’s 4x200m freestyle relay team that secured bronze behind Hungary and Italy. They just missed out on another medal in 4x100m women’s freestyle relay, where GB came fourth, and in the 4x100m mixed medley event where the British team finished fifth.
Widdows also reached the individual semi-finals of the 50m and 100m butterfly events and in both cases just missed out by one place on the final, finishing ninth. She clocked 27.18 in the 50m semis and 1:00.74 in the 100m.
Both her and Little were also close to reaching the 200m freestyle final. Little came 10th overall with a 2:02.89 semi-final swim and Widdows was 11th with 2:03.15.
Little was also a semi-finalist in the 100m freestyle, finishing 12th overall with a 56.40 second swim.
Fry was the first Mount Kelly swimmer to win a medal after swimming in the heats of men’s 4x100m freestyle relay where GB later took silver in the final.
Also competing for Great Britain at the championships was Dartmoor Darts’ Cameron Williams.
Williams reached the individual 50m breaststroke semi-finals. He clocked 28.49 seconds in the heats and then 28.52 in the semis to finish 13th overall. He just missed out on the semi-finals of the 100m breaststroke event with a 1:03.78 swim in the prelims.
European Junior Champs 2022 🇬🇧
🥇 1 Gold Medal
🥈 3 Silver Medals
🥉 2 Bronze Medals
⏱ 10 Open MK Records
🏴 5 Scottish Records
🏁 11 Final Swims
🔥 8 Semi-Final Swims
💙 4 Incredible MK Swimmers #Proud #ThisTeam #LetsGo pic.twitter.com/4NWOaYo8cz
— Mount Kelly Swimming (@MountKellySwim) July 10, 2022