delphi-compound-block-indent

delphi-compound-block-indent is a variable defined in `opascal.el'.
Its value is

0

• This variable is an alias for `opascal-compound-block-indent'.
• This variable is obsolete since 24.4;
  use `opascal-compound-block-indent' instead.

Documentation:
Extra indentation for blocks in compound statements. E.g.

// block indent = 0 vs // block indent = 2
if b then if b then
begin begin
end else begin end
end; else
begin
end;

You can customize this variable.