Is there a way to view and print call history between me and a contact?

Type below in chat window:

/htmlhistory

i realize this is not the right spot to be writing this but i cant seem to find how to post things properly on here. I have a privacy related question though so this is as close as i could get.

If i have blocked someone who was harassing me, my status to them will show as gray with (x) (ie. permanently offline) or gray with (?)?

thank you very much.

If you remove from contacts a previously authorised person, can they:
Q1) See you online?
A1) Yes they will still see you online

Q2) Contact you?
A2) They can contact you if you have either allow all contact or allow those you have authorised, but not if you have 'contacts only' and each of these can be set seperately for calls or chats.

Q3) Blocked Users
A3) blocked users cannot contact you or see you online in any circumstances

When you block somebody, they goes back to ?mark!
Until it’s removed from this list, a Skype user who is blocked will be unable to see the status of or communicate with the user who blocked them.
Users who have been blocked may be unblocked at any time by the user who put the
block in place, simply by removing the blocked user’s name from the blocking list and re-requesting authorization again.

With regard to authorisations:
Authorizations are stored on both sides. So if you had already asked this contact for authorization previously, his/her client has remembered it, and if you now ask again, the response is returned automatically without popping up anything for the remote side, since you already have been authorized previously

What should that command do? I'm trying to backup my chat history in plain text but using that command on the latest skype does nothing. Just... nothing.

Btw, I wanna back it up cause I messed with system time and the chats I had in that time are now below the new chats and I want to erase it all. Pretty annoying thing since one can't erase specific parts of the chat history. Or at least an option to hide chat history all together.