Yes, assuming the following:
A) You entered your portfolio value on that same tab,
B) Your portfolio is invested approximately 75%/25% equities/fixed, and that your expenses are in-line with the default (0.18%)
C) Your pension is COLA'd.
For "B", you will probably only have an expense ratio that low if you DIY with low cost index funds. If you have an FA that is charging you 1% or so, and putting you in high expense ratio funds, you will need to boost the default fee number. This can make a huge difference.
Foe "C", if your pension is not COLA'd, the buying power decreases over time, so you can't really make the assumption it will keep up. Better to enter it on tab 2, along with SS.