REsizing all items in one slide

[village]

Hello All,

I have a slide with images and text box and I would like to resize them at the same time keeping the distances and spaces.
I thought that arranging all items in one group and than work on the "big" box woiuld keep me the structure, however, some Items, mostly text box and arrows do not change.

CAn it be that I didn't select all items and missed few of thems? I used the option "select all".



Thank you.