My actual objective is to use my phone to perform simple tasks on EC2
assets (ugly, but still very useful). Connections are only permitted via
Session Manager or terminal within Node Actions of the AWS GUI -- no ssh.

The AWSU GUI terminal option works pretty well and makes connecting to
bookmarked machines very convenient once authenticated. However, I can't
figure out how to key in control sequences -- is there a reasonable way to
do this?

Rooting or doing hacky things with the phone is not an option. Any ideas
appreciated.

kyle