Hi LD
If the project is opened online and FC1 is deleted out, online, the OB35 is opened and Call, BLD 7, BLD 8 and End Call are commented out and the project is then up loaded the hidden code can then be seen off line. OB35 off line and online do not now match. Online shows the commented out code and as replicated it uncommented?? Down loading OB35 gets rid of the replicated code and still allows the code to function.
Still not sure why there is a difference in downloading OB35 when the block is open as opposed to downloading form S7 Manager. Also looking at the help file for BLD how did you know to use 7 & 8??
Jon