Some of those features might have been 'stripped' from the software by the manufacturer, or maybe hidden somewhere else? Samsung phones, for instance, 'hide' the pin window option under 'Lockscreen and security', for some reason.
If the features are not there because the manufacturer removed them,however, the only way to 'get them back' is to find a ROM with said options included. Problem is you'd need to find one that's made specifically for your device model or you might break other things and even render your device completely unusable.