Yes, you can enter all types of bonds in MProfit.
To enter this into MProfit:
1. Double click on the Bonds icon on the left hand side
2. Select Buy and click on New
3. Enter the name of the bond
4. For zero coupon bonds, you can ignore the interest rate and enter only Quantity, Price and Amount and click OK.
You need to manually update the prices from time to time if you need to update the current value for this bond.
To set the price manually, right click the name of the bond, click 'Set Current Price' and click OK.