(--------)
By any chance, do you have a mock-up of a sequence diagrams with timers?
Have you considered using sprites for timer symbols ?
You can use the following code for sprite
sprite $clock [15x15/16z] { LOzH3i0W24D_f4BvyFwtdRJBaf6eUPPYFJ45GESHP5MbBowm6NTjONOt5-y-ZFwGiAZcMnce9fbHWnLWOwseBOJLscdLth7BwydccVp9VbUff3gLClFDVFu_ UW00 }
<$clock>yourtext