Program protection without parameters active protection

Hi, I have a problem with right protection in my project. When i enable password on program, unfortunately I had to type it setting parameters.

I wanna set password  on my FBD program, but it must be possible to change a few parameters (timer ect.) without password.

It is possible in Logo 8? 

Regards

I've found two solutions:

1. I don't set "protection active" for the block which i wanna change times. I set password on my program and when program is running i can change time in the block. When i stop plc and want to edit program or parameters password is required. :) 

2.This solution required web server. We can do that using network analog input. We set write value to local variable memory (VM). After that, click tools->parameter vm mapping. There we can choose block (e.g timer), parameter which we want to change, type (e.g. word) and address VM (we choose the address which we set in the Network Analog Input). Next, we have to enable web server connection and after login in browser click "Logo variables". There we choose network analog input with right adress and we can change parametres, which is e.g TON_DELAY as in my project.