copy exact lotage from signal please help

the issue is the following: ive been copying a trader from here to my mt4 account, but sometimes the trader increases the lotage for instance the next operation places 0.02 the next one 0.03, but my account who receives the signals maintain the same lotage, how can I copy the same lotage the signal provider uses? thank you
Signal lot size is adjusted from signal balance and leverage to yours.
  1. Down by reducing the deposit load below 95% (max)
  2. Up by increasing your account balance vs. what the signal provider has.
  3. If you had used this you would have found among many:
              Icrease lot size - General - MQL5 programming forum #2 (2018)
              signal provider has minimal volume 0.01, subscriber has 0.10 - how to change minimal volume ???? - MQL5 programming forum (2013)