WSTPAD_SOFTBUTTONS
tp->features |= WSTPAD_SOFTBUTTONS;
tp->params.bottom_edge = ((tp->features & WSTPAD_SOFTBUTTONS)
if (tp->features & (WSTPAD_SOFTBUTTONS | WSTPAD_MTBUTTONS))
flag = WSTPAD_SOFTBUTTONS;
flag = WSTPAD_SOFTBUTTONS;