HL vs IBKR limit orders question

[u/Blackstone4444]

Hi all - I’ve been moving to IBKR but still have my SIPP with HL.

When I place limit orders with IBKR, it breaks down the trade into small lots at different prices. And I can cancel a partial fill and change the order price if the stock price has moved.

However with HL, I get less transparency and it looks like my limit orders have to be 100% filled to go through so either I have to break down larger orders on small caps to smaller orders and the cost adds up or I have to use market orders which I don’t like…

Does this happen to others as well?