Now that you're familiar with the workflow concept, we'll see how to add new question to a workflow.
1. Start creating the question
Simply press the + Add question button in the topic you want to add it to.
If you look at the left panel you will see that you have a button for each topic. But don't worry you can always reorder questions if you made a mistake.
2. Question details
Title
It's mainly used in navigation menu, it will also be what the user sees at first glance. so aim for simple and clear title.
Question
Here you can detail what you are really waiting for. Users might only read the first time they use the workflow, but don't neglect it, it will be a helpful for new user, and people that need time to get along with new solutions.
Required
If you switch it on, user won't be able to complete the workflow without answering
3. Component's choice
You have now to choose a component that will meet your needs. Zero Keyboard provides component for every type of answer, and choosing the right one is the most crucial part while designing your workflow.
All components are detailed in their own articles but here is already a small hint of what you can use, based on the type of answer.
Lookup
Search : lets users select one or multiple records from a Salesforce object
Call : Same as Search with the option to call
Predefined text/numeric answers
Wheel : lets users do a single selection
List : lets users select one or multiple answer in a list (can be based on an existing picklist)
Pictures & text recognition
Camera : let you add pictures with text recognition
Free text
Voice to text : let the user enter his own answer by dictating or typing
Date & Time
Date & Time : everything is in the name
Numbers