Animate position Not translation

Hi , im struggling with animating this image position
I want it to translate under the clicked button, i’ve used relative translation, but the problem is that translation value change depending on where is current clicked button. But UE dont give the option to SET POSITION, but only translation.
Scénario :
If the bt_bg is under Item (by default for me) and i want to click on “Weapon” the translation should be 300px but if the current is “Stuffs” and i want to click on "Weapon that the translation should be 600px
i cant make two animations for “weapon” activating depending on where is the current clicked one.