If your questions are not answered in the manual or you want to report a bug, here are some additional resources.
There is a searchable public support forum at feedback.textasticapp.com where many of your questions might already be answered.
Use it to send me ideas, questions or bugs - either publicly or in private.
Also make sure to vote for the features you want to see implemented in future versions of Textastic.
If you prefer, you can also send me an email:
In Textastic, tap the ? button in the bottom toolbar
Tap Email Support
Or just send an email to firstname.lastname@example.org.
If you require help, please send me as much information as possible: detailed device information, step-by-step instructions, screenshots, and even small videos always help.