Pinning may not be new to some of you, but this is a useful function in Teams for keeping those items you use often near the top of the list.
On either the channel or on a chat, simply select the elipses "..." and then select Pin from the menu provided and this will ensure that the item selected then stays at the top of the list for easy access. It should be noted you can pin a "Team" but can pin the channel within a team.
This is really useful when working on particular project that you want easy access to. Once the project is over, simply "unpin". This will move it back to the normal location on a list.
For more information follow this link for the Microsoft support video on how to do this.
As always, if you require further assistance, feel free to call ISG on (04)802 6262 and the team will be happy to help.