Please have a look at this topic in the manual for details: https://www.textasticapp.com/v9/manual/remote_servers/sftp_ftps_ftp.html#public-key-authentication

It also has sections about the supported key file formats and key types.

It's not necessary anymore to use the PEM format. You can use the default key format.

Are you sure "ssh-keygen -m PEM -t rsa -b 409" is the command line you used? When I do that, I get the following error:

Invalid RSA key length: minimum is 1024 bits

You can also use more modern key types like ECDSA or ED25519 in the latest version of Textastic.

Textastic tries to open the files that were open the last time the app was used and it tries to restore the external folders at launch.

If a file was previously opened using the "Open…" command or a folder added using the "Add External Folder…" command, it is possible that the file provider hangs for some reason and opening the file or folder times out, resulting in a crash.

If the app crashes directly at launch, you can try the following:

• go to the Settings app
• scroll down to Textastic
• enable "Reset Recent Files"

I'm working on this feature right now and hope to include it in the next major update. 

Thanks a lot for your feedback! It's always good to hear what new users are missing.

As far as I know there is literally nothing I can do to change this system-provided NSTextFinder UI (see https://developer.apple.com/documentation/appkit/nstextfinder).

For example, I'm typing this in Safari and its website search UI uses the exact same control size as Textastic.

I would have to implement my own interface from scratch to change that (which I might do in the future to support regular expressions which the system UI cannot do).

Hello,

- Where to disable autosave

Textastic uses the NSDocument architecture and AutoSave in order to support editing files in iCloud Drive from several devices and to support macOS features like Versions.

You can configure it in your Mac's System Preferences -> General to also ask whether to save your changes or revert to the last explicit save when closing a file.

This is the same behavior that is used by native macOS apps like TextEdit and Xcode.

- How to find and replace within multiple files

You can find in multiple files in the sidebar by using the Edit > Find in Files… menu item (Shift-Cmd-F). This does not support replace at the moment.

- How to convert HTML entities

There is no built-in functionality for this. You could use Find and Replace for this.

- How to edit multiple lines at oncek

Textastic doesn't support multiple cursor at the moment.

- How to add 'plugins' ... if any

You can add custom syntax definitions and themes using TextMate bundles and Sublime Text packages

Thanks for the video, I'll look into it. 

I tried to reproduce the problem but what I tried looks correct to me.

Can you please send me a screen recording video that demonstrates the problem?

It looks like MultiMarkdown, which I use for Markdown preview, supports Critic Markup. I could enable this extension in a future update so it would show the changes as highlights in the Markdown preview. 

See https://fletcher.github.io/MultiMarkdown-6/syntax/critic.html