Select one sequence by clicking on the id panel. Note that the sequence ID takes on a highlighted background and a red box appears around the selected sequence. Now hold down [SHIFT] and click another sequence ID a few positions above or below. Note how the selection expands to include all the sequences between the two positions on which you clicked.
Now hold down [CTRL] and click on several sequences ID's both selected and unselected. Note how unselected IDs are individually added to the selection and previously selected IDs are individually deselected.
}
Select one sequence by clicking on the id panel. Note that the sequence ID takes on a highlighted background and a red box appears around the selected sequence. Now hold down [SHIFT] and click another sequence ID a few positions above or below. Note how the selection expands to include all the sequences between the two positions on which you clicked.
Now hold down [CTRL] and click on several sequences ID's both selected and unselected. Note how unselected IDs are individually added to the selection and previously selected IDs are individually deselected.
}