Life time cash flow modelling is an essential part of financial planning. It has taken me a year to become proficient with the software but it is worth it. My clients are finding it much easier to understand why I recommend certain things when I am able to demonstrate the effects of a recommendation on future finances.
If your financial adviser has not invested in this technology or upgraded their skills to utilise it then maybe you should get an adviser who has. Its more effort for us, but it makes things clearer for you and I believe you are worth it!