There are certain limitations to keyboard operation on iOS devices (iPad, iPhone). Functions not supported include but not limited to zoom in/out, scrolling certain text boxes, drag and drop app icons... etc. For more information please refer to the manual of your iOS device.
No. The bluetooth keyboard is "remembered" by the iPad once it successfully paired with the iPad. The keyboard will then auto pair with the iPad if they are both turned on within the range. If you wish to stop auto pairing, you may disable the device via the "Bluetooth" page under "Settings" in the iPad.
This is caused by the hidden magnet that is meant to put iPad in sleep mode when closed. This magnet may also trigger the sleep / wake mode from behind the iPad. To avoid this, please fold and insert the leather band in between the cover to create a space so that the magnet cannot trigger the sleep mode. Your Typi will hold like this:
The space in between prevents the magnet from triggering sleep mode.
You may also fold the case cover a bit over the symmetry to avoid the contact of magnet and iPad like shown: