Here's how you add Texture Lock, and grid-snap buttons.
1) Install the grid snap icons below to your UI\Icons\Menus of your engine install directory.
2) Add the following to your UI\Toolbars\Menu.json after "Options"
{},
"Texture Lock",
"Grid Snap",
"Angle Snap",
Save it, and restart the editor.
Here's what your final script should look like (0.9.9)
{
"toolbar":
{
"left":
[
"New",
"Open",
"Save",
{},
"Cut",
"Copy",
"Paste",
"Delete",
{},
"Undo",
"Redo",
{},
"Zoom In",
"Zoom Out",
{},
"Create",
{},
"Rotate X",
"Rotate Y",
"Rotate Z",
{},
"World Settings",
"Options",
{},
"Texture Lock",
"Grid Snap",
"Angle Snap",
{},
"Run",
{},
"3D Perspective",
"Front - X/Y",
"Back - X/Y",
"Top - X/Z",
"Bottom - X/Z",
"Left - Z/Y",
"Right - Z/Y"
],
"right":
[
"Four Viewports",
"Single Viewport",
"Two Viewports",
"Three Viewports",
{},
"Console",
"Side Panel"
]
}
}
grid snap.zip