The Aptana Studio plugin is open-source on GitHub.
Add WakaTime to your Aptana Studio as a new Update Site:
Select Help → Install New Software…, then enter this url and hit Enter:
Help → Install New Software…
Check the WakaTime package, then click Next and proceed with the wizard to install the plugin.
Click File → WakaTime → API Key, enter your API key
, then click OK.
File → WakaTime → API Key
Use Aptana Studio and your coding activity will be displayed on your WakaTime Dashboard.
Inside Aptana Studio select Help → Check for Updates.
Help → Check for Updates
Inside Aptana Studio, select Help → About.
Help → About
Click Installation Details button.
Select WakaTime from the list and press Uninstall… button and confirm the uninstalling by click Finish.
Re-launch Aptana Studio.