Dragging actors into collisions

Hi I develop a mobile games under UE4 in 2d and when using a joystick and collisions
"BlockAllDynamic " my character is blocked by collisions and if I want to go in the direction of a collision and go to the right at the same time, it doesn’t work. I’m looking for a way to slide on collisions while running into them. Sorry this is not very clear I can explain with pictures if necessary .

Merci d’avance

Do you mind explaining further? I think I’m picturing the issue but I want to make sure before I give any irrelevant information.

Of course, thank you for your answer . When my character is in
constant collision with a collision box that blocks all the keys
directional of my keyboard I bitten being able to choose to target only the direction key block .

My 2d character moves on the X and Z axis and I tried to make a drawing for you to explain, it’s not very explicit, I hope you will understand . The orange arrows are pressed but my character does not move on the side , of course I do not press the 2 arrows at the same time .