Thanks you both of you for your detailed feedback. Good to hear that you like ZZInfoBar so far.
I've released a new alpha version with some little corrections. Nothing big and special. It's available soon on curseforge.com or the curse client when it's configured to download alpha versions. Everything is ready only the curseforge packager needs to start.
* Install is easy, I did not have any problems to install additions as map, but as VfWiffo suggested, it would be better if upon initial install buttons are placed on the bar sorted by plug-in (same group together) and if there is a option in menu to reset interface and replace buttons based on selected plug-ins and options inside plug ins.
I guess I won't implement that for now. That initial "list" is nice as it is. From my point of view, creating an "intelligent" auto placement of buttons is work for something that will hinder people that want to have their individual button positions. If you drag a button on top of another one you'll activate the auto alignment feature and if the bar is already full with buttons you need to make some space first. The list keeps the bar clean on the first start but I'll think about creating a background to make it more visible.
* As VfWiffo suggeste, pet name is too long, and everyone playing on Alts as we do will have issue if Alt has no pet. (most do not

)
Okay, I'll shorten the localisation to "no pet". I guess that's short enough. ;D
* DPS counter is very important, as well option to see all current stats as I suggested early. Gives an easy way to compare gear, and see if person's DPS drops due to lost buff.
Then I will add a DPS button to the bar. Eventhough I don't completely understand how a stat tooltip is an easy way to compare gear (StatRating for item tooltips and StatCompare for your character window are much better for this) I will implement it with the DPS button as it won't affect your games performance.
* Number of open/finished quests in quest book, as mentioned before.
I'll think about it.
* Option to select what part of info to show regarding class/level.
Are you talking about the class tooltips? I'd like to leave them as they are.
* As suggested above, store number of new emails and reset it only once mail is opened. It would be great if upon closing of mail you can store number of unread emails, but I don't remember any other add-on being able to do so. Something like New mail 3/6. Three new, 6 total in inbox.)
I'll check if that one chat message is still displayed on game start telling you how many new mails you have and have the new mail counter displaying the correct amount of new mail over several sessions...
I haven't used the "mail API" till now, so I can't tell you if "new mail: 3/6" is possible or needs thousands of workarounds.
* My time clock at home seems to be 1 hour off. Not sure why is that, might have to do with day light saving.
That's because MorphClock seems to be unable to estimate your correct location, or your item shop servers are 1 hour off. You can adjust the time with "/morphclock <shift>" where <shift> is any positive or negative number you like: /morphclock -25
What I mean is that when a mail arrives, it is accompanied by the message "your <item name> has been sold" or similar. Xbar extracts the item name from that message, so if I see 5 rom-mails, the mouseover for the mail icon shows the names of items sold. That way I can get idea what is my mailbox without going to it.
Not sure that keeping track of mails would work, because I dont think you can read mailbox remotely, without being at one. That means any email received after you log out but before you log back in will not be counted.
Oh, I had no idea this was possible in xBar. It would be nice addition.
No you can't read the mailbox remotely, but I can extract the names of sold items as long as you are logged in. Just give me some time...