You can remove objects from the groups you created earlier with the Remove From Selection Group command.
Location of Remove From Selection Group Command
After selecting the object, you can access the Remove From Selection Group command from the menu that appears when the right mouse button is clicked.
Select the objects to be removed from the group.
Move your mouse to the Remove From Selection Group line from the right-click menu.
Click on the group you want to remove from the list.
The selected objects will be removed from the group.
Selecting objects to be removed from the group
Selecting the group to remove objects from and removing objects from the group