Hi!
Thanks for writing in and sorry to hear you have problems with the plugin. Please see my comments below.
I installed this plugin, and being unable to find a setting which would tweet every hour had to set timings manually for 3 days of the week
Right now, there is no setting that would tell the plugin to tweet using a fixed interval such as every hour, every three hours etc. These have to be set manually as you’ve done. That’s the correct way. I am working on a more flexible and efficient way to set up schedule to accommodate every one’s needs, so please be on the look-out for an update.
waited for time when tweet was scheduled and no tweet was made
If you’ve followed all the steps in this article https://nerdcow.co.uk/doc/tweet-wheel/troubleshooting/what-to-do-when-plugin-doesnt-send-tweets-at-all/ and everything ticks off, the only thing I can think of is other plugins or themes interfering. You might want to deactivate them all and give it a go. Additionally, please be aware the plugin works off your local time, not server’s time. Meaning it depends on the timezone selected in WordPress general settings.
Does your Twitter app has READ AND WRITE permission?
unable to access theme customizer.
Would you mind opening your browser’s console while in Customizer and grabbing a screenshot of the console? It’s 100% javascript error / conflict that I will be happy to fix on my end.
Looking forward to hearing from you
Tomasz