Not sure if HABMIN works right?

  1. looks good, that is the standard welcome screen
  2. known issue %%key_not_found%%
  3. it looks like it is for displaying purposes (or it is grayed out because your items are configured via text files?)
  4. sorry, never used that feature, can’t tell
  5. same as 4.

HABmin’s main purpose is configuring zwave devices. I know from other posts that the maintainer is working on all the other features but because of lack of time you may have to wait a bit longer.

I would recommend to use openHAB like stated in the docs:
add tags to items: http://docs.openhab.org/configuration/items.html
scheduling: use time based triggers in rules: http://docs.openhab.org/configuration/rules-dsl.html#time-based-triggers
setting up dashboards: use sitemaps http://docs.openhab.org/configuration/sitemaps.html

Have fun.