How to edit some parts of Anspress plugin text

I’ve installed the Anspress Q&A plugin to
I want to use it for an Idea Management function, for new business ideas.
So I’ve changed the base urls etc to ‘ideas’ and ‘ventures’, rather than questions. That’s all fine, but there’s a few remaining parts I don’t know how to change:
– The button ‘Ask question’ at :
– When you select this, the next form then has Question pre-populated into the field, and there’s another Submit Question button.
How can I change these?
I’m not technical enough to edit theme template files, and I tried a search/replace plugin, but it found lots of entries to change with no obvious way to know which is the right one.
Any other ideas?
thanks, Neil.