Macro bar for simple rolls?

Is there a way, in the free version, to make like a macro bar for simple rolls of basic custom dice?   We use a single black dice a lot.  /roll 1t[bl]

Maybe too late and I'm not sure to understand your question. You configured a rollable table which contains several images of a black dice with custom markings on it. Each image showing only one mark? The only way to do this with a free account, is to click 'Token' beside [bl] and then right-click on the token that appeared on the VTT and choose "Multi-sided"->"Random side" each time to "roll" the dice. (don't forget to check the 'Players can roll from table' option in the rollable table).

Thank you!