-//#define INS_LENX (1*ALBE_LC_SIC)
-//#define INS_LENY (1*ALBE_LC_SIC)
-//#define INS_LENZ (1*ALBE_LC_SIC)
-#define INS_LENX (31*ALBE_LC_SI)
-#define INS_LENY (31*ALBE_LC_SI)
-#define INS_LENZ (31*ALBE_LC_SI)
+#define INS_RAND // random nsert
+//#define INS_HEXA // hexagonal interstitial position
+//#define INS_TETRA // tetrahedral interstitial position
+//#define INS_110DB // 110 dumbbell interstitial position
+//#define INS_001DB // 001 dumbbell interstitial position
+//#define INS_USER // user defined insertion location
+ #define INS_UX -0.25
+ #define INS_UY -0.25
+ #define INS_UZ +0.25
+
+//#define INS_ATTR ATOM_ATTR_HB // heat bath
+#define INS_ATTR ATOM_ATTR_HB|ATOM_ATTR_VB // + vis bonds
+//#define INS_ATTR ATOM_ATTR_HB|ATOM_ATTR_VB|ATOM_ATTR_FP // + fixed pos
+
+//#define INS_LENX (12*ALBE_LC_SIC)
+//#define INS_LENY (12*ALBE_LC_SIC)
+//#define INS_LENZ (12*ALBE_LC_SIC)
+#define INS_LENX (9*ALBE_LC_SI)
+#define INS_LENY (9*ALBE_LC_SI)
+#define INS_LENZ (9*ALBE_LC_SI)