Hi leon.huo,
It's not possible to readd the key, sorry, but you can view it on our site.

Hope that helps!

There are two things RTM should fix once and for all:
1 Having the opportunity to re-add the key after you have closed it.
2 Adding a proper calendar to add dates when you click on the calendar symbol on the website.

Hi rajjan,
Thanks for your feedback on this. We appreciate it.

Thanks for the reply guys, this is by design, I see.
But I think the possibility to re-add key window is good and useful feature.
Right?

Hard to argue with those things, Rajjan. I might be tempted to add configurable per-list or per-item reminders and multi-variate per-list sorting, but they would be tricky compared to these two you note.

Relax ranbarton, although there's a lot things to be fixed, RTM is also the best GTD web site I've ever used.

It's a terrific site. I use it daily and value it highly. I also think that there are some glaring aspects that could benefit from additional polish and refinement, and that some of these have lain untouched for a long, long time.

Method to get the Key back in Chrome or Firefox:

1. Bring up the JavaScript console
       Chrome: Press Ctrl + Shift + J
       Firefox: Press Ctrl + Shift + K

2. Type in "legend.toggle();" without the inverted commas
       (make sure it's all lower case)

3. press Enter and enjoy!

So simple yet RTM can't figure it out?

I have my Key back!
Thanks!

You have to do this from the RTM web page, otherwise it doesn't work

Interestingly, I did this in Chrome and the key became visible in Internet Explorer also. Probably, that's to be expected and a nice work-around for IE users.