Arabic Note Taking App (Mac)

Building a native mac OS X Yosemite app using Xcode. The app is basically a prototype for a note taking app in Arabic language. The app should have the following features: 1- Uses a specially designs cursor (blanking orange cursor) 2- Can scale to full screen (centralizes text, left and right) 3- Uses a rich-text editor that can activate the following features through keyboard shortcuts (works for both selected text and before writing): a) Command + B : Bold b) Command + H : Header (enlarge the text to be suitable header) 4- Can export as HTML file (from File menu) 5- Uses a custom font (attached)