I do not use any special contexts for cancelled tasks.
Do not like the idea to change an original context with something artificial…
Currently, if I decide to cancel the task then I do this steps:
- mark the task as “Done”;
- date of completion is set to “Today” - since I cancelled this task TODAY;
- add a postfix like “[cancelled - %reason%]” (or simply “[leave it]”).
“Repair the laptop” -> “Repair the laptop [cancelled - bought a new one]”
“Run 10 km” -> “Run 10 km [leave it]”
Basically I use OF in iPad.
And in iOS a task’s note is not visible in the tasks list - you have to open the task to see it.
That’s why I AM TRYING NOT USING NOTES - everything is specified in “[…]” and is displayed in tasks list.
Of course, I cannot see all these cancelled tasks in a perspective…
Actually, usually I do not need to reconsider these cancelled tasks.
But there is a workaround: if you always use postfix “[cancelled …]” then you can list all these cancelled tasks by simple search.