Cannot Edit Data Block in Step7 V5.4 sp4

Hello friends,
Two days ago something strange happened that I cannot edit data blocks ie change the contents of data blocks. They turned to gray and I cannot change any data on the data block. I was using Step7 V5.4 SP2 and I dowlaoded SP4 from siemens site and nothing changed. I was hoping you could help me.

Greetings form Turkiye
Hakan

Hi Hakan.

Are you looking with "Data view" in stead of "Declaration view" selected ?
You switch between these two with CTRL-4 and CTRL-5.

Thats right Jesper I switched with Ctrl+5 and it is OK. Oh I wont forgive myself for this.
Thank you very much. Its a good to you are there to help us.
Best Wishes.

Hakan