Thanks 1) Remove line in tclgame.tcl -> don't correct the problem 2) run Scid from Scid_macos_static_x64 correct this problem AND also correct my left click in pgn viewer (Mail : [Scid-users] V4.71 on macOS BigSur / mouse issues) 3) So, I will try to download / compile with TCL/TK 8.6.10
gamelist / save modified game