I tired creating a "Scene" but I did not have an appropriate "Controller" to trigger the Scene. So, at Brobin's suggestion, I tried the Alexa Routine. Perhaps Brobin can help.
The 'Scenes' function in the P2 Hub is only for Insteon devices but you can essentially do the same thing by creating an Automation Rule. You can create a dummy X10 device to use as a trigger.
For example, define an Appliance Module as "Office Lamps" and assign it X10 code 'N1' (or whatever) and save it.
Next, create an 'Automation Rule' called 'Office Lamp Scene' or whatever you like.
In the 'When' section select 'ANY' condition, tap '+' then 'Device Status' and choose the 'Office Lamps' device you created earlier, then tap 'Is on' and 'Everyday' and 'Save.' The Summary will say 'Every day when Office Lamps is On.' You could also add a daily sunset +/- condition here as well (that's why I said choose ANY instead of ALL conditions).
Now, in the 'Then do' section tap '+' then select a device and follow the prompts to turn it on and set the dim level as appropriate, tap 'Save.' Repeat for each device in the scene and 'Save.'
Have Alexa discover devices to find the new 'Office Lamps' device and you're done. Tell Alexa to "turn on office lamps" and all the actions in the Automation Rule will happen. Give it a try!