InqScribe can insert a series of timecodes into your transcript at a specific time interval, as described in this article. This inserts timecodes, all at once, at specified intervals. 

Note that InqScribe does not allow you to insert timecodes at pre-specified time intervals as you type, say every 30 seconds. A feature like this would be impossible to implement properly because InqScribe would have no way of preventing situations where the timecode gets inserted in the middle of a word that you are in the midst of typing, like th[00:00:11.11]is. That's just messy.

If your goal is to make timecode insertion as easy and as regular as possible, we recommend that you create a custom snippet that inserts a timecode every time you hit a common key. For instance, the snippet might look like this:

{$TIME} Speaker Name:

(In this example, <return> means that you simply press the return key to add a blank line.)

Then, assign a trigger for that snippet, such as the return key or the period key or some other key that you often press during a logical break in your typing. 

This way, any time you hit that hotkey, InqScribe will insert two lines, then a timecode, then the words "Speaker Name," and you can type your text after that.

This method will prevent timecodes from appearing randomly in between words.

Want to learn more about how to create custom snippets? See this article.