With docket toolbox, how to expose docket daemon without TLS?

Completely new to dockers here, apologize if this is a dumb question.

In Docket Desktop, there is a setting to ‘expose daemon without TLS’. How do I do it in docket toolbox? In fact how do I know of the daemon is running properly? When I issue the command ‘docker-machine ls’, I get the following:

$ docker-machine.exe ls
NAME ACTIVE DRIVER STATE URL SWARM DOCKER ERRORS
default * virtualbox Running tcp://192.168.99.100:2376 Unknown Unable to query docker version: Get https://192.168.99.100:2376/v1.15/version: http: server gave HTTP response to HTTPS client

It seems the daemon (virtualbox) is running, but is the error at the end saying otherwise?

Docket desktop setting: