Copy/paste feature is a rather lengthy process. Adding a simple screen capture feature to the tools (such as attaching files, emoticons, etc) would be very helpful when needing quick discussions and actions.

Add option to save and send GIFs besides smileys and emoticons. Lotus Sametime has GIFs and it is one of it's best features.

Save and send an IM when someone is offline. Sometimes you don’t want to send an email or you want to say something like “give me a call when you get in”. Having to ability to send an IM to someone offline that would “Auto send” once they come online would be useful. Especially when working with people around the world.

Add “Be back around XX:XX”. It would be nice to have an option for “Be back around XX:XX” under my status where you could specify the time you will be back. If I look someone up and their status is be right back, I have no idea how long they have been away and when “right back” will actually be. People have a tendency to change their status back to Available when they return so one never knows. The function to state a time and have it go back to available automatically would be very useful, IMHO.

Chat History should be stored in the Skype. Suppose I closed a chat window, I open chat window again. I want to see my previous conversation very easy way. So introduce Chat History Option in the chat window, That should show all the chat history information based on the date. So that will help me to get my old chat informations to everyone.

Allow two log-in's from two user names, or allow multiple instances of SfB open (with differing log-in's).

Allow someone to share the premade groups/contacts. I work in an office and we have 15 different facilities. I created a "group" for each of these facilities with each contact from that facility in that "group." I want to be able to share my group and contact settings so everyone does not need to create all these groups on their own. Simply upload and have all the contacts and groups on their skype for business contacts.

Make It single log in with outlook So that When we log in to outlook we will directly connected to Skype. And add disable option for those who do not want to be connected directly in one go .

The ability to move all of our users over to Skype for business away from Skype is really hindered by the fact no one will have each other added. The only way we can see this working out is if everyone manually adds each other after signing in.

There really should be a way to find all users within your organisation so you can tick who you wish to add, or just a "Select all" tick to add every one.

External addresses could be added from this point on wards.

Allow user to set a default Status of their choice, such as "Do Not Disturb" I keep setting Status to Do Not Disturb and Skype keeps changing it to "Available". I use Skype for conf calls, but not for chatting so want a permanent Status indicator of "Do Not Disturb"

SIP addresses of all consumer skype contacts without MS account association turned into CID-(-xxxxxx...)@outlook.com.
This is an absolutelt unusable format. Please return the format to traditional skypeid which can be something like skypeid@skypeids.net

It would be nice to have the ability to freeze the display as the presenter so that I can control exactly what meeting participants can see. If I need to navigate in a file structure to open another file I want to do this in the background so it's not visible, then when I have it properly set up for display, unfreeze the display to seamlessly switch to the new view.

Possibility to share a screenshot or a part (window) of your screen

Sefautil is a nice tool for configuring call forwarding, delegates, group call pickup, etc. But it's quirky, lacks good reporting and error handling, and just plain difficult if you don't use it often. Having standard cmdlets to perform these tasks would be a blessing.

It can be handy to have availability alerts if you are waiting for one person in particular, but I would like to have the option to turn off notifications alerting me when each person becomes available.

Asana recently added a compact view to view more content - same idea but for the IM communication in Skype - reduce space and window size

There is no way to retrieve conversation history with this messenger. The outlook messenger kept a continuous history in outlook itself, as well as your recent conversation when you opened an IM to someone you were having a conversation with that day.