To let use ATLust-RLV functions, you must have an RLV enabled viewer, and have the "Enable RLV" setting turned out (Main Menu > Settings > RLV > Enable RLV). If RLV is not enabled on your viewer, you will see "@versionnew=" messages in your local chat.
The HUD will attempt to detect if RLV is enabled. The “RLV Verified” button will say “True” if it has detected RLV. If not, it will say “False”. Clicking the button will cause the HUD to check again. If RLV is not detected, the HUD will not send commands.
To let ATLust change your shape, you must have RLV enabled on both your viewer and ATLust, and the "Preg Shapes" option on ATLust.
Create 10 versions of your shape, each with a progressively larger belly, breasts, and whatever else you want to be changed as your pregnancy progresses. I highly recommend naming each with the percentage of the pregnancy, incrementing by tens (10%, 20%, 30%, etc.)
Select all of your new shapes, right click and click "Copy". Then right click any of the shapes, right click again and click "Paste as links".
Find the #RLV folder in the root of your inventory. If it does not exist, create it. Inside of the #RLV folder, create a new folder called "ATLust", inside of the ATLust folder, create a new folder with your ATLust characters name. Inside of the character folder, create a folder named "Shape", and inside of that, make folders numbered 0 to 9. Folder 0 will contain your base, non-pregnant shape.
Move the links to you created earlier to the appropriately numbered folder. (IE: Folder 3 would be 30%)
Go to Settings > RLV > and click Test Preg Shape. You should see your av switch to the 50% progress shape (The shape in the 5 folder). If not, your folder structure is not correct, or there is an issue with RLV. Note, your av will switch back to the 0% shape if you're not pregnant. This will happen every minute when your HUD checks in with the server.
If you have multiple characters, simply repeat the steps for each character. You can copy and paste the folders to make the process easier, just be sure to put the correct shapes in them.
Note: I highly recommend pasting links into your character shape folders, and not the originals. (Right click, then click "Paste as link")
When you knot your partner, both you and the partner will become unable to change the sex actions until the partner with the knot drops below 20% arousal. The RLV option adds these additional restrictions.
Prevents detaching or editing the HUD. (This restriction is ignored if your HUD is not the latest version)
Prevents standing up, or teleporting away.
These restrictions are only applied if both partners have RLV verified.