Currently it is not possible to select how many lines a textbox is in a questionair, there is only the option to make it singleline or multiline. To make it easier to read the contents in the textbox and write something there is currenly a button in the lower right corner to expand the textbox. However this button is very small on a mobile device or tablet which makes it really hard to expand with your fingers. Suggestion would be to make this button a bit bigger so it is easier to make a textbox bigger when you are filling out an inspection from a Tablet or Mobile device.