Use id of module + delta

dev/skeletons/modMyModule.class.php

@@ -173,7 +173,7 @@ class modMyModule extends DolibarrModules
 
 		// Add here list of permission defined by an id, a label, a boolean and two constant strings.
 		// Example:
-		// $this->rights[$r][0] = 2000; 				// Permission id (must not be already used)
+		// $this->rights[$r][0] = $this->numero + $r;	// Permission id (must not be already used)
 		// $this->rights[$r][1] = 'Permision label';	// Permission label
 		// $this->rights[$r][3] = 1; 					// Permission by default for new user (0/1)
 		// $this->rights[$r][4] = 'level1';				// In php code, permission will be checked by test if ($user->rights->permkey->level1->level2)