Please capitalize where necessary: it is an autoimmune disease that attacks the nervous system due to which patients can have a range of symptoms of optic neuritis, to stiffness, difficulty walking, and some people due to the development of the disease can develop a high level of disability.
A: It is an autoimmune disease that attacks the nervous system due to which patients can have a range of symptoms of optic neuritis, to stiffness, difficulty walking, and some people due to the development of the disease can develop a high level of disability.
Q: the gymstick for an effective strength, endurance, flexibility and coordination workout.

A: The Gymstick for an effective strength, endurance, flexibility and coordination workout.
Q: you may also make annotations to your plans as well as mark stamps or symbols of your choosing.
A: You may also make annotations to your plans as well as mark stamps or symbols of your choosing.
Problem: 2 focus wing ds/external corner (incl. in external corner kit, see installation guide)
Can you repeat this sentence, but capitalize it?
Answer: 2 Focus Wing Ds/external corner (incl. in external corner kit, see installation guide)
Text: and they two went until they came to bethlehem. and it came to pass, when they came to bethlehem, that all the city was moved about them, and the [women] said, is this naomi?

Correct capitalization: And they two went until they came to Bethlehem. And it came to pass, when they came to Bethlehem, that all the city was moved about them, and the [women] said, Is this Naomi?
Text: the project is part of an industrial phd and 3xn believes that, among other things, it will help to demonstrate how their architectural signature – the spacious stairwell – has the desired effect, i.e. by becoming the building's unifying feature.

Correct capitalization:
The project is part of an industrial PhD and 3XN believes that, among other things, it will help to demonstrate how their architectural signature – the spacious stairwell – has the desired effect, i.e. by becoming the building's unifying feature.