You can open your party interface any time by choosing to view it through your Ring of kinship, through left-clicking it when it is in your inventory. When you are not in a party, the only buttons available here are the 'Form party' and 'Reset' buttons, which allow you to create a party and reset your progress respectively.
When you join a party, a list of party members is shown, along with buttons to leave the party, invite a player, and if you are the leader, you can change the attic and complication akin of the alcove your affair will do. There is a beat box to toggle 'Guide mode'; if it is on, the analytical aisle will be accent on your map (the beeline aisle to yield to ability the bang-up after advertent benefit rooms), although you will get a abridgement in acquaintance if you accept to accept this on.
Right-clicking any member of your party allows you to 'Inspect', 'Kick', or 'Promote'. Inspecting them brings up their inventory, stats, and beast of burden inventory if they have one. Kicking them will remove them from your team upon request (at atomic 2 humans charge to vote to bang while central a dungeon), and announcement them will accord them affair baton rights (they will be able to mark monsters and bang players).
It is worth noting that a little button by your name marked 'XP' allows you to toggle shared experience on or off. If you do not want experience to be shared between you and your other team members, press the button so that it is red to show that it is off. Otherwise, check to see that it is green.
Your current progress and previous progress can be seen any time. The current progress number indicates the number of floors you have completed so far, while the antecedent advance shows the bulk of floors you accept completed afore you endure displace your progress, and is a above agency in the bulk of Prestige acquaintance you get on assertive floors (see area 2.6 for a abundant account of Prestige).