Title: Editor Improvement: Add a "Selection Lock" toggle and position safety boundaries to prevent lost objects.

Description: > Editing objects in Second Life can currently be unforgiving, often resulting in lost inventory. I would like to propose two major quality-of-life improvements to the build/edit menu:

Selection Lock Toggle: Instead of requiring the user to continuously hold down the left mouse button while manipulating or holding an object, add a "Lock Selection" button. This prevents accidental de-selection if a mouse click slips.

Basically you cant click off the object by accident when edit lock is on.

Also have a rerun edit object button encase it shoots off in the distance you can return the locked object. Some times return to last known position does not work on edit linked a glitch perhaps and it shoot some place ware you cant find it.

Velocity/Distance Safety Cap: Implement a safeguard that prevents objects from accelerating into outer space or off the region bounds during edit slip-ups. This is a critical issue when handling rare, no-copy/mod objects that become permanently lost when they shoot past draw distance or off-region.

The reason I need this is because I build huge towns and cities. When I am editing a massive house made of many different parts and I use edit linked, it is incredibly easy to accidentally click off an object while moving it. When that happens, trying to find and re-select that one tiny detail piece or invisible prim again can be almost impossible without tearing the whole build apart.

Other times I am editing invisible prim in a wall or door and if they lose selection its a real game to re select them again.

Us who spend long hours editing in game who have 1000s of hours working on a project will thank you if this is implemented.