+ uiDefButBitS(block, TOG, MOD_MDEF_DYNAMIC_BIND, B_MODIFIER_RECALC, "Dynamic", lx+(buttonWidth+1)/2 + 20, (cy-=19), buttonWidth/2 - 20,19, &mmd->flag, 0.0, 31.0, 0, 0, "Recompute binding dynamically on top of other deformers like Shape Keys (slower and more memory consuming!)");
}
uiBlockEndAlign(block);
} else if (md->type==eModifierType_ParticleSystem) {