for now you cant gust slabs
Not the PC version, but you can download Minecraft: Pocket Edition on iOS and Android.
To make the move pad bigger in Minecraft Pocket Edition, go to the game's settings. Under the "Controls" section, you can adjust the "Movement" control size by dragging the slider to your preferred size. Additionally, you can customize the layout of on-screen controls to enhance your gaming experience. Remember to save your changes after adjusting the settings.
i pad
you cant
Stick a pad in your pocket
Yes, you can play minecraft in a ipad (if that's what you meant). Download minecraft lite for free.
When you push down the pad it forces the air out from underneath the pad. as a result, the air pressure inside the pad is less than the air pressure outside the pad. So the air pressure outside pushes down on the pad.
You place a box of 8 wooden planks with redstone dust in the middle.
watch a video for it on Youtube you will need to download iExplorer though...
You right click
If you mean the redstone wiring, then just put some down on the ground and then put a pressure pad, switch or button next to it, and it should light up.
With a pressure pad