Follow the steps below to edit properties of textures used in materials.

1. Select the object/s in the view or in the model browser.
2. Go to Rendering - Texture Positioning (you will notice the texture in the view)
3. A list of textures is seen under 'Textures. The '+' indicates linking. Changing one texture will proportionally change all linked textures.
4. Edit texture properties as required and see changes in real time.