SA107 - income from deceased estate

I received some taxed savings interest and dividends from my godmother's estate this year. I think this means I have to complete SA107? If so, it looks like I can't do that online without specialist software. Does that mean that I have to submit my entire tax return using a paper form this year?

Hi ,
 

You are required to submit your entire tax return in the same format, whether that is on paper, online using HMRC return or by buying a commercial online tax return. Thank you .