button hold to start dim until release - how?

[narrow eagle]

I got this blueprint for my 4-button switch (https://gist.github.com/vandalon/d2a327297d579b304549e96c66765992) and i already configured it to turn on and off 2 different lights. There are also options for holding a button for which i want the lights to dim and i got it working with one of the lights, but only because that light is zigbee and communicates using MQTT, so i can send a 'move' MQTT message that makes it start dimming.
The other light is connected to a shelly dimmer 2 (wifi). The shelly is dimmable, the light is dimmable and i can command it to dim to say 40% or 80%. But what if i just want to make it start dimming at a specific pace, either up or down, until i release the button again. How do i do that in automations? I don't have much experience (or success) with coding in raw yaml, i only use the GUI.

[obtuse wyvern]

You can do basically the same thing with templates

action: light.turn_on
entity_id: light.my_shelly_dimmer_2
data:
  brightness: "{{ min(state_attr('light.my_shelly_dimmer_2', 'brightness') | int + 5, 255) }}"
  brightness: "{{ max(state_attr('light.my_shelly_dimmer_2', 'brightness') | int - 5, 0) }}"

Top value is for brightening, bottom is for darkening, the min and max prevent you from setting the brightness outside of the range 0-255

[narrow eagle]

Thanks! How do i use that in my blueprint?

oh, i need to make a template!

Can ou tell me which one?

[obtuse wyvern]

i've never used that blueprint but it looks like you can just define arbitrary actions for button_X_held?

you don't need to make a template

[narrow eagle]

how? what am i looking for?

[obtuse wyvern]

click on add action

action: light.turn_on

point it at your shelly dimmer

and add the brightness to the data

[narrow eagle]

alright

naah wait, that just gives it a set percentage of brightness

what i want is to hold down the button and then it seamlessly increases the brightness until i release and then it stays on that brightness. Same with other button and then decrease

[obtuse wyvern]

Edit the yaml and put that template in instead

Change the name to be whatever your shelly is called

Then it makes the hold message be "set the new brightness to be X more than the current brightness"

[narrow eagle]

doesnt work

for some reason

[obtuse wyvern]

Read up a little bit: change the name in the template to be whatever your shelly is actually called

[narrow eagle]

that is what it is actually called

[obtuse wyvern]

OK. So change it to that

[narrow eagle]

Like shown in the previous screenshot i sent you, it already is that

[obtuse wyvern]

In the brightness template it is not

[narrow eagle]

oh