Win7x64 Ultimate, LibreOffice Version 3.6.0.0.beta2 (Build ID: f010139) Open a new spreadsheet. In any cell, insert a condition in Conditional Formatting, [Ok]. Edit the conditional formatting for this cell, nothing there. No problem with LibreO 3.5.5.2
Sounds like a DUP of "Bug 51555 - FORMATTING Not possible to add Conditional formatting" @mariosv: Please feel free to reopen this Bug if you find evidence that we have an independent issue here that still exists in 3.6.0.0.beta3. *** This bug has been marked as a duplicate of bug 51555 ***