To alter your mouse settings for the game Lost Ark, the first important thing to do is open up your setting in game settings using the Escape key. From there, you'll see several dropdown menus that you can access. Choose the menu called "Hotkeys" for access to your controls and button-mapping options.

Once you're on your "Hotkeys" menu, scroll down to find the section labeled "Basic Controls." When you look at the top, you'll see two red boxes with an icon for the mouse within them. Additionally, you'll see an icon for a lock next to these boxes. This means that they aren't able to be altered.

Even if the controls on your mouse are locked, don't fret, you'll be able to explore your settings further and find an option to "Attack with Right-click" in the next few boxes. Toggle this box on or off depending on which mouse button is more comfortable for users to click with.

If the "Attack with right-click" option is on you'll be able to be able to interact, move and even pick up objects using the left-click button. If it's disabled it will instead be using left-click to attack and right-click to perform everything else.

One of the first steps you'll take while laying out your control system during Lost Ark is deciding whether you'd like to use left-click or right-click to be your standard attack button.

If you want to know more about Lost Ark, you can go to https://www.mmoexp.com/Lost-ark/Gold.html