Using the 5.1.3B2 build (non Somona) build I can’t seem to recreate exactly your demo video at Blocs for Mac 5.1.3 Beta Build 1 📢 - #39 by Norm by following what I think I see in your video. I still get the CSS Grid visual controls and auto generated Grid Items. See below:
I selected Grid in the Positioning for the class I created - cssgrid1, but I noticed that there is Blocs created class of grid-style added. I also set this to Grid in positioning but the visual controls and layout remained.
Also, I have not set a gap in the Grid Container box, and there appears to be a non zero default gap that is not displayed. Wondering if this is being derived from the default CSS Grid visual layout?
I can’t help thinking that the Blocs CSS Grid is getting even more complicated, and I would find it more intuitive to add an extra pair of new Div Brics called CSS Grid Container and CSS Grid Item. Then you would add a CSS Grid Continer already with all required settings in place, and then add in Grid Items as required without any auto generation of Grid items and an unrequired additional empty Row.